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Surveyed Khmer Turquoise

#33d1c3
Notes

Surveyed Khmer Turquoise (#33D1C3) 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 (175°, 63%, 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
#33d1c3
RGB
rgb(51, 209, 195)
HSL
hsl(175, 63%, 51%)
HWB
hwb(175 20% 18%)
OKLCH
oklch(77.9% 0.127 185.9)
P3
color(display-p3 0.4106 0.8080 0.7634)
HSV
hsv(175, 76%, 82%)
LAB
lab(76.22% -42.51 -4.54)
LCH
lch(76.22% 42.75 186.10)
CMYK
cmyk(76%, 0%, 7%, 18%)

Etymology

Surveyed
adjective

Old French surveer, to look upon — past-participle of survey. As a color modifier, surveyed implies a clear-and-measured-and-coordinated quality, the crisp color of Mason-Dixon-Line-and-Royal-Navy-Hydrographic scientific-and-cadastral land-and-sea surveying tradition. Sits at the crisp-and-mapped end of the grid, parallel to mapped and plotted in usage.

Khmer
modifier

Sanskrit Khmer, Cambodian. As a color modifier, khmer implies an Angkorian-and-temple-complex quality, the visual register of Angkor-Wat-and-Bayon Khmer-Empire hand-built sandstone-and-laterite temple-and-jungle-overgrown-stonework surfaces under Angkor-Wat-and-Bayon Cambodian-jungle-canopy filtered tropical light. Sits at the modifier-and-cultural end of the grid, parallel to toltec and median 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

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.

#33d1c3
Original
#c6c5c3
Protanopia
#b0b5c5
Deuteranopia
#00d6cc
Tritanopia
#aeaeae
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
1.90:1
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
11.05:1

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
##33D1C3
Display P3
Display P3
color(display-p3 0.4106 0.8080 0.7634)
P3 has subtle headroomOKLCH chroma 0.127

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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