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Truthful Qīng

#13571d
Notes

Truthful Qīng (#13571D) is a deep green 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 (129°, 64%, 21%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#13571d
RGB
rgb(19, 87, 29)
HSL
hsl(129, 64%, 21%)
HWB
hwb(129 7% 66%)
OKLCH
oklch(40.2% 0.112 145.3)
P3
color(display-p3 0.1612 0.3360 0.1437)
HSV
hsv(129, 78%, 34%)
LAB
lab(31.90% -34.06 27.18)
LCH
lch(31.90% 43.57 141.41)
CMYK
cmyk(78%, 0%, 67%, 66%)

Etymology

Truthful
adjective

Old English trēowth, truth — adjectival suffix -ful. As a color modifier, truthful implies a clear-and-honest-and-direct quality where the hue carries the visual register of accurate-and-faithful-representation declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and honest in usage.

Qīng
noun

The classical Chinese word for blue-green — one of the five Chinese cardinal colors, corresponding to the east, spring, and the dragon. Qīng spans modern Chinese green and blue, encompassing everything from forest leaves to deep-sea water in pre-modern color vocabulary. The color refers to a qīng-cí (blue-green celadon) glaze: a saturated, slightly muted deep green-blue.

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.

#13571d
Original
#594e17
Protanopia
#514922
Deuteranopia
#00554b
Tritanopia
#444444
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).
AAAon White
8.72:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.41:1

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
##13571D
Display P3
Display P3
color(display-p3 0.1612 0.3360 0.1437)
P3 has subtle headroomOKLCH chroma 0.112

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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