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Tenacious Peplos Cerulean

#1c8dd6
Notes

Tenacious Peplos Cerulean (#1C8DD6) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (204°, 77%, 47%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1c8dd6
RGB
rgb(28, 141, 214)
HSL
hsl(204, 77%, 47%)
HWB
hwb(204 11% 16%)
OKLCH
oklch(62.0% 0.144 244.1)
P3
color(display-p3 0.2644 0.5448 0.8163)
HSV
hsv(204, 87%, 84%)
LAB
lab(56.24% -3.73 -45.65)
LCH
lch(56.24% 45.80 265.32)
CMYK
cmyk(87%, 34%, 0%, 16%)

Etymology

Tenacious
adjective

Latin tenāx, holding-fast — adjectival suffix -ous. As a color modifier, tenacious implies a saturated-and-clinging quality where the hue grips its substrate with stubborn pigmentation. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant in usage.

Peplos
modifier

Greek πέπλος, Hellenic-women's-robe. As a color modifier, peplos implies a Hellenic-women's-peplos-and-pinned-shoulder quality, the visual register of Hellenic-peplos-and-Athena-Parthenos hand-Hellenic-women's-peplos-and-pinned-shoulder Hellenic-peplos-and-Athena-Parthenos-and-Panathenaic-festival peplos-and-Hellenic-women's-peplos surfaces under Hellenic-peplos-and-Athena-Parthenos-and-Panathenaic-festival Athenian-Acropolis-and-Panathenaic-procession Hellenic-court-light. Sits at the modifier-and-textile end of the grid, parallel to chiton and tunic in usage.

Cerulean
noun

From the Latin caeruleum, originally referring to dark blue paint pigment of the Roman world, then via French céruléen into English. As a modern art-supply name, cerulean blue is the cobalt-tin oxide pigment introduced in 1805. The color refers to a clean, slightly green-shifted blue with the matte finish of mineral pigment in linseed oil: lighter than cobalt, deeper than aqua, with the painter's weight of a word for sky.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#1c8dd6
Original
#6a90d9
Protanopia
#5080d5
Deuteranopia
#009fa7
Tritanopia
#7a7a7a
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
3.60:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.83:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##1C8DD6
Display P3
Display P3
color(display-p3 0.2644 0.5448 0.8163)
P3 has subtle headroomOKLCH chroma 0.144

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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