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Practical Blithe Lazuli

#3c7981
Notes

Practical Blithe Lazuli (#3C7981) is a true cyan 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 (187°, 37%, 37%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3c7981
RGB
rgb(60, 121, 129)
HSL
hsl(187, 37%, 37%)
HWB
hwb(187 24% 49%)
OKLCH
oklch(53.9% 0.064 206.7)
P3
color(display-p3 0.2957 0.4689 0.5005)
HSV
hsv(187, 53%, 51%)
LAB
lab(47.26% -17.31 -10.43)
LCH
lch(47.26% 20.22 211.07)
CMYK
cmyk(53%, 6%, 0%, 49%)

Etymology

Practical
adjective

Greek praktikós, practical — adjectival suffix -al. As a color modifier, practical implies a clear-and-purpose-fit-and-everyday quality where the hue carries the visual register of Shaker-and-Quaker utilitarian-and-functional everyday-life craft. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Blithe
modifier

Old English blīthe, joyful-and-kind. As a color modifier, blithe implies a carefree-and-light-hearted-and-cheerful quality, the visual register of Shakespearean-pastoral-and-Forest-of-Arden-blithe hand-carefree-and-light-hearted-and-cheerful Shakespearean-pastoral-and-Forest-of-Arden-and-As-You-Like-It blithe-and-carefree-and-light-hearted-and-cheerful surfaces under Shakespearean-pastoral-and-Forest-of-Arden-and-As-You-Like-It English-greenwood-and-shepherd's-meadow Maytime-light. Sits at the modifier-and-mood end of the grid, parallel to merry and jolly in usage.

Lazuli
noun

Passerina amoena, the lazuli bunting — a North American songbird whose males display saturated deep-blue plumage with white wing bars and chestnut breasts. Named for the gemstone (lapis lazuli) the bird's plumage resembles. The color refers to a male lazuli bunting in breeding plumage: a saturated, slightly cool deep 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.

#3c7981
Original
#707582
Protanopia
#656d81
Deuteranopia
#097d7b
Tritanopia
#6d6d6d
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
4.95:1
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
4.24:1

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
##3C7981
Display P3
Display P3
color(display-p3 0.2957 0.4689 0.5005)
Inside sRGBOKLCH chroma 0.064

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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