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#40B5A4

#40B5A4 Color — #40B5A4

Complete color reference for #40B5A4: conversions to RGB, HSL, HSV, CMYK, color harmonies, shades & tints scale, and WCAG accessibility contrast ratios.

Color Format Conversions

HEX#40B5A4
RGBrgb(64, 181, 164)
HSLhsl(171, 48%, 48%)
HSVhsv(171, 65%, 71%)
CMYKC:65% M:0% Y:9% K:29%
CSS Color#40B5A4
Decimal4240804
Luminance0.3682

WCAG Accessibility Contrast

#40B5A4 on White
Ratio: 2.51:1 — Fail
#40B5A4 on Black
Ratio: 8.36:1 — AAA
White on #40B5A4
Ratio: 2.51:1 — Fail
Black on #40B5A4
Ratio: 8.36:1 — AAA

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

Shades & Tints Scale

50#F5FBFA
100#E2F4F1
200#C6E9E4
300#A9DED6
400#83CFC4
500#40B5A4
600#339183
700#266D62
800#1A4842
900#102D29

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 #40B5A4?

The RGB equivalent is rgb(64, 181, 164). The red channel is 64, green is 181, and blue is 164 (scale 0–255).

What is the HSL value of #40B5A4?

The HSL value is hsl(171, 48%, 48%). Hue is 171°, saturation is 48%, and lightness is 48%.

Does #40B5A4 meet WCAG accessibility standards?

On a white background, #40B5A4 achieves a 2.51:1 contrast ratio (Fail). On a black background it achieves 8.36:1 (AAA). WCAG AA requires ≥4.5:1 for normal text.

What is the complementary color of #40B5A4?

The complementary color (180° opposite on the hue wheel) of #40B5A4 is #B54051.