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Reflective Seagrass

#3b5c4d
Notes

Reflective Seagrass (#3B5C4D) is a deep 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 (153°, 22%, 30%) places it in the muted 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3b5c4d
RGB
rgb(59, 92, 77)
HSL
hsl(153, 22%, 30%)
HWB
hwb(153 23% 64%)
OKLCH
oklch(44.4% 0.046 164.3)
P3
color(display-p3 0.2600 0.3574 0.3057)
HSV
hsv(153, 36%, 36%)
LAB
lab(36.21% -15.78 4.84)
LCH
lch(36.21% 16.50 162.95)
CMYK
cmyk(36%, 0%, 16%, 64%)

Etymology

Reflective
adjective

Latin reflectere, to bend back — adjectival suffix -ive. As a color modifier, reflective implies a hushed-and-thoughtful-and-mirroring quality where the hue carries the visual register of Quaker-and-Friends-meeting-house still-and-meditative interior-architecture. Sits at the hushed-and-still end of the grid, parallel to meditative and contemplative in usage.

Seagrass
noun

Marine flowering plants — distinct from algae — that form underwater meadows in shallow coastal waters worldwide. Genera include Zostera, Posidonia, Thalassia. The color refers to a tropical seagrass meadow at low tide: a soft, slightly cool deep blue-green with the satin finish of submerged grass-leaves.

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.

#3b5c4d
Original
#5b584c
Protanopia
#55544e
Deuteranopia
#335c58
Tritanopia
#545454
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
7.44:1
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
2.82:1

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
##3B5C4D
Display P3
Display P3
color(display-p3 0.2600 0.3574 0.3057)
Inside sRGBOKLCH chroma 0.046

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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