#40637C#40637C

#40637C is a mid, muted cyan. Relative luminance 0.115; OKLCH L 48.4% C 0.057 H 240.5°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#40637C
RGB	rgb(64, 99, 124)
HSL	hsl(205, 32%, 37%)
HSV	hsv(205, 48%, 49%)
CMYK	cmyk(48.4%, 20.2%, 0%, 51.4%)
CIE-LAB	lab(40.36, -5.22, -17.91)
CIE-LCH	lch(40.36, 18.65, 253.76°)
OKLab	oklab(48.36% -0.0281 -0.0497)
OKLCH	oklch(48.36% 0.057 240.5)
XYZ	xyz(10.2130, 11.4682, 20.7403)
Luminance	0.1147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40637C #7C5940

analogous

#407C77 #40637C #40457C

triadic

#40637C #7C4063 #637C40

tetradic

#40637C #77407C #7C5940 #457C40

square

#40637C #77407C #7C5940 #457C40

split-complementary

#40637C #7C4045 #7C7740

monochromatic

#16232B #2B4354 #40637C #5583A4 #7BA1BB

Accessibility & contrast

On white

6.38

#40637C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#40637C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40637C

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40637C	#FFFFFF	#000000	##FFFFFF
##40637C	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637D

Deuteranopia (green-blind)

#505C7C

Tritanopia (blue-blind)

#25696B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #40637c;
/* rgb */ color: rgb(64, 99, 124);
/* oklch */ color: oklch(48.4% 0.057 240.5);

Tailwind

colors: {
  custom: {
    50: '#788fa2',
    500: '#40637c',
    950: '#000000',
  },
}

SCSS

$custom: #40637c;
$custom-light: #788fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#40637c",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 124
  },
  "hsl": {
    "h": 205,
    "s": 31.915,
    "l": 36.863
  },
  "oklch": {
    "l": 0.48357,
    "c": 0.05712,
    "h": 240.5
  },
  "luminance": 0.11469
}

Semantic roles & 50–950 ramp

primary

#40637C

secondary

#A68872

accent

#8B60C8

background

#F7F8F9

surface

#EDF0F2

border

#C8CBCC

text

#090C0F

muted

#7B7D7E

Preview Lab

Preview with #40637C

Body copy rendered with the generated semantic roles for this colour.

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