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Workmanlike Tarn

#42959b
Notes

Workmanlike Tarn (#42959B) 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 (184°, 40%, 43%) 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
#42959b
RGB
rgb(66, 149, 155)
HSL
hsl(184, 40%, 43%)
HWB
hwb(184 26% 39%)
OKLCH
oklch(62.1% 0.080 201.8)
P3
color(display-p3 0.3461 0.5770 0.6022)
HSV
hsv(184, 57%, 61%)
LAB
lab(57.09% -23.17 -10.77)
LCH
lch(57.09% 25.55 204.92)
CMYK
cmyk(57%, 4%, 0%, 39%)

Etymology

Workmanlike
adjective

Old English weorcmann, workman — adjectival suffix -like. As a color modifier, workmanlike implies a clear-and-skilled-and-honest quality where the hue carries the visual register of journeyman-craftsman careful-and-competent hand-built craft. Sits at the crisp-and-functional end of the grid, parallel to functional and practical in usage.

Tarn
noun

A small mountain lake — particularly the cwm (cirque) lakes of the British Lake District, the Welsh hills, and the Norwegian peaks. From the Old Norse tjörn. Tarn color refers to a fresh-water tarn at Stickle Tarn in Cumbria: a saturated, slightly cool deep blue with the optical depth of cold-water mountain pool.

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.

#42959b
Original
#8b8f9c
Protanopia
#7d859b
Deuteranopia
#009a97
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
3.50:1
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
6.00:1

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
##42959B
Display P3
Display P3
color(display-p3 0.3461 0.5770 0.6022)
P3 has subtle headroomOKLCH chroma 0.080

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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