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#138B81

#138B81 Color — #138B81

Complete color reference for #138B81: conversions to RGB, HSL, HSV, CMYK, color harmonies, shades & tints scale, and WCAG accessibility contrast ratios.

Color Format Conversions

HEX#138B81
RGBrgb(19, 139, 129)
HSLhsl(175, 76%, 31%)
HSVhsv(175, 86%, 55%)
CMYKC:86% M:0% Y:7% K:45%
CSS Color#138B81
Decimal1280897
Luminance0.2019

WCAG Accessibility Contrast

#138B81 on White
Ratio: 4.17:1 — AA Large
#138B81 on Black
Ratio: 5.04:1 — AA
White on #138B81
Ratio: 4.17:1 — AA Large
Black on #138B81
Ratio: 5.04:1 — AA

WCAG AA requires ≥4.5:1 (normal text) or ≥3:1 (large text). WCAG AAA requires ≥7:1.

Shades & Tints Scale

50#F3F9F9
100#DCEEEC
200#B8DCD9
300#95CBC6
400#66B4AD
500#138B81
600#0F6F67
700#0B534D
800#083834
900#052320

Steps 50–400 are tints (mixed with white); 500 is the base color; 600–900 are shades (mixed with black).

Color Harmonies

Related Color Tools

Frequently Asked Questions

What is the RGB equivalent of #138B81?

The RGB equivalent is rgb(19, 139, 129). The red channel is 19, green is 139, and blue is 129 (scale 0–255).

What is the HSL value of #138B81?

The HSL value is hsl(175, 76%, 31%). Hue is 175°, saturation is 76%, and lightness is 31%.

Does #138B81 meet WCAG accessibility standards?

On a white background, #138B81 achieves a 4.17:1 contrast ratio (AA Large). On a black background it achieves 5.04:1 (AA). WCAG AA requires ≥4.5:1 for normal text.

What is the complementary color of #138B81?

The complementary color (180° opposite on the hue wheel) of #138B81 is #8B131D.