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Easy Freya Kingfisher

#0a9db1
Notes

Easy Freya Kingfisher (#0A9DB1) is a true cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (187°, 89%, 37%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a9db1
RGB
rgb(10, 157, 177)
HSL
hsl(187, 89%, 37%)
HWB
hwb(187 4% 31%)
OKLCH
oklch(63.9% 0.109 210.8)
P3
color(display-p3 0.2770 0.6064 0.6834)
HSV
hsv(187, 94%, 69%)
LAB
lab(59.30% -26.59 -20.04)
LCH
lch(59.30% 33.30 216.99)
CMYK
cmyk(94%, 11%, 0%, 31%)

Etymology

Easy
adjective

Old French aisié, comfortable, at rest — used as a color modifier since the eighteenth century for hues that read as visually undemanding. Easy beige, easy gray: moderate saturation combined with optical restfulness. Sits at the crisp-bucket center alongside calm and settled.

Freya
modifier

Old Norse Freyja, goddess-of-love-and-Vanir. As a color modifier, freya implies a Vanir-goddess-and-feathered-cloak-and-Brísingamen quality, the visual register of Norse-Freya-and-Vanir-goddess hand-Vanir-goddess-and-feathered-cloak-and-Brísingamen Norse-Freya-and-Vanir-goddess-and-Brísingamen-amber-necklace freya-and-Vanir-goddess-and-feathered-cloak surfaces under Norse-Freya-and-Vanir-goddess-and-Brísingamen-amber-necklace Folkvang-and-Sessrúmnir-and-cat-drawn-chariot amber-necklace-light. Sits at the modifier-and-myth end of the grid, parallel to odin and vala in usage.

Kingfisher
noun

The family Alcedinidae — particularly Alcedo atthis, the European common kingfisher whose iridescent turquoise-blue plumage gives the color its name. The color refers to a male European kingfisher's wing: a saturated, slightly cool deep blue-green with the iridescent satin finish of structurally colored feathers.

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.

#0a9db1
Original
#8d97b2
Protanopia
#7989b1
Deuteranopia
#00a5a3
Tritanopia
#7f7f7f
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
3.25:1
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
6.47:1

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
##0A9DB1
Display P3
Display P3
color(display-p3 0.2770 0.6064 0.6834)
P3 has subtle headroomOKLCH chroma 0.109

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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