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Straightforward Barn Turquoise

#33c0cf
Notes

Straightforward Barn Turquoise (#33C0CF) is a true cyan with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (186°, 62%, 51%) 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
#33c0cf
RGB
rgb(51, 192, 207)
HSL
hsl(186, 62%, 51%)
HWB
hwb(186 20% 19%)
OKLCH
oklch(74.2% 0.116 205.8)
HSV
hsv(186, 75%, 81%)
LAB
lab(71.49% -31.20 -18.11)
LCH
lch(71.49% 36.07 210.13)
CMYK
cmyk(75%, 7%, 0%, 19%)

Etymology

Straightforward
adjective

English compound straight + forward — sharing root with German geradeaus. As a color modifier, straightforward implies a clear-and-direct-and-unencumbered quality where the hue carries the visual register of clear-aim-and-uncomplicated character. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Barn
modifier

Old English bere-ærn, barley-house. As a color modifier, barn implies a hay-loft-and-stable quality, the visual register of English-and-American tithe-barn-and-Pennsylvania-bank-barn timber-frame-and-stone agricultural surfaces under Midwest-and-English-rural barnyard farmstead light. Sits at the modifier-and-place end of the grid, parallel to loft and mill in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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

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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.

#33c0cf
Original
#b0b8d0
Protanopia
#9aa8cf
Deuteranopia
#00c8c4
Tritanopia
#a3a3a3
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).
Failon White
2.19:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
9.58:1

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