colors
Back to gallery

Flat Atriplex

#399b78
Notes

Flat Atriplex (#399B78) is a true teal with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (159°, 46%, 42%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#399b78
RGB
rgb(57, 155, 120)
HSL
hsl(159, 46%, 42%)
HWB
hwb(159 22% 39%)
OKLCH
oklch(62.2% 0.106 166.0)
P3
color(display-p3 0.3351 0.5998 0.4794)
HSV
hsv(159, 63%, 61%)
LAB
lab(57.72% -37.17 10.04)
LCH
lch(57.72% 38.50 164.89)
CMYK
cmyk(63%, 0%, 23%, 39%)

Etymology

Flat
adjective

Old Norse flatr, flat / level. As a color modifier, flat implies a clear-and-evenly-spread quality where the hue carries the matte-finish visual register of unmodulated single-plane surface. Sits at the crisp-and-balanced end of the grid, parallel to level and even in usage.

Atriplex
noun

The genus Atriplex — saltbushes, the salt-tolerant gray-green shrubs of saline desert, beach, and salina habitats from California to Australia. The color refers to a clump of A. canescens in Mojave Desert: a soft, slightly cool silver-green with the matte finish of salt-encrusted leaf.

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.

#399b78
Original
#989176
Protanopia
#8a877a
Deuteranopia
#009b91
Tritanopia
#848484
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
3.42:1
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
6.13:1

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
##399B78
Display P3
Display P3
color(display-p3 0.3351 0.5998 0.4794)
P3 has subtle headroomOKLCH chroma 0.106

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.

Related Colors

Canvas