#637E95#637E95

#637E95 is a mid, muted cyan. Relative luminance 0.197; OKLCH L 58.1% C 0.047 H 244.4°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#637E95
RGB	rgb(99, 126, 149)
HSL	hsl(208, 20%, 49%)
HSV	hsv(208, 34%, 58%)
CMYK	cmyk(33.6%, 15.4%, 0%, 41.6%)
CIE-LAB	lab(51.55, -3.86, -15.52)
CIE-LCH	lch(51.55, 15.99, 256.05°)
OKLab	oklab(58.06% -0.0204 -0.0426)
OKLCH	oklch(58.06% 0.047 244.4)
XYZ	xyz(18.0296, 19.7434, 31.2888)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637E95 #957A63

analogous

#639593 #637E95 #636595

triadic

#637E95 #95637E #7E9563

tetradic

#637E95 #936395 #957A63 #659563

square

#637E95 #936395 #957A63 #659563

split-complementary

#637E95 #956365 #959363

monochromatic

#32404B #4B5F70 #637E95 #869CAF #ABBAC7

Accessibility & contrast

On white

4.24

#637E95 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#637E95 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #637E95

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637E95	#FFFFFF	#000000	##000000
##637E95	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757E96

Deuteranopia (green-blind)

#6E7895

Tritanopia (blue-blind)

#538385

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #637e95;
/* rgb */ color: rgb(99, 126, 149);
/* oklch */ color: oklch(58.1% 0.047 244.4);

Tailwind

colors: {
  custom: {
    50: '#91a3b4',
    500: '#637e95',
    950: '#000000',
  },
}

SCSS

$custom: #637e95;
$custom-light: #91a3b4;
$custom-dark: #000000;

JSON

{
  "hex": "#637e95",
  "rgb": {
    "r": 99,
    "g": 126,
    "b": 149
  },
  "hsl": {
    "h": 207.6,
    "s": 20.161,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58064,
    "c": 0.04727,
    "h": 244.4
  },
  "luminance": 0.19744
}

Semantic roles & 50–950 ramp

primary

#637E95

secondary

#B6A99E

accent

#916BBD

background

#F9FAFB

surface

#F1F3F6

border

#CBCDD0

text

#0D0F11

muted

#7E7F80

Preview Lab

Preview with #637E95

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

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