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Sure Maui

#17867a
Notes

Sure Maui (#17867A) is a deep teal with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (174°, 71%, 31%) places it in the balanced 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#17867a
RGB
rgb(23, 134, 122)
HSL
hsl(174, 71%, 31%)
HWB
hwb(174 9% 47%)
OKLCH
oklch(55.9% 0.094 183.5)
P3
color(display-p3 0.2462 0.5177 0.4784)
HSV
hsv(174, 83%, 53%)
LAB
lab(50.26% -32.08 -1.96)
LCH
lch(50.26% 32.14 183.49)
CMYK
cmyk(83%, 0%, 9%, 47%)

Etymology

Sure
adjective

Old French seur, certain — used as a color modifier since the medieval period for hues that read as confident and stable. Sure red, sure blue: moderate saturation combined with optical commitment. Sits at the crisp-bucket center alongside steady and true.

Maui
noun

The Hawaiian island — and the saturated turquoise of Maui's Molokini Crater snorkeling-lagoon water. Maui refers to Molokini Crater at midday: a saturated, slightly cool deep blue-green with the optical clarity of cold Pacific water filtered through volcanic black-sand and white coral.

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.

#17867a
Original
#7f7e7a
Protanopia
#71737b
Deuteranopia
#008982
Tritanopia
#6e6e6e
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
4.44:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.73:1

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
##17867A
Display P3
Display P3
color(display-p3 0.2462 0.5177 0.4784)
P3 has subtle headroomOKLCH chroma 0.094

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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