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Straightforward Oolong

#0f6477
Notes

Straightforward Oolong (#0F6477) is a deep 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 (191°, 78%, 26%) places it in the highly saturated band at a dark 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
#0f6477
RGB
rgb(15, 100, 119)
HSL
hsl(191, 78%, 26%)
HWB
hwb(191 6% 53%)
OKLCH
oklch(46.6% 0.079 217.8)
P3
color(display-p3 0.1776 0.3861 0.4581)
HSV
hsv(191, 87%, 47%)
LAB
lab(38.81% -16.36 -17.38)
LCH
lch(38.81% 23.87 226.74)
CMYK
cmyk(87%, 16%, 0%, 53%)

Etymology

Straightforward
adjective

English compound straight + forward — sharing root with German geradeaus. As a color modifier, straightforward implies a clear-and-direct-and-unencumbered quality where the hue carries the visual register of clear-aim-and-uncomplicated character. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Oolong
noun

The partially-oxidized Chinese tea — qīng-chá (cyan tea) — with the deep blue-green liquor distinct from green tea (lower oxidation) and black tea (higher oxidation). The color refers to fresh-brewed Tieguanyin oolong: a saturated, slightly cool deep blue-green with the optical depth of partially-fermented tea liquor.

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.

#0f6477
Original
#586178
Protanopia
#4a5777
Deuteranopia
#006a6a
Tritanopia
#535353
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).
AAon White
6.75:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.11:1

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
##0F6477
Display P3
Display P3
color(display-p3 0.1776 0.3861 0.4581)
Inside sRGBOKLCH chroma 0.079

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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