#637EA2#637EA2

#637EA2 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.064 H 255.8°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#637EA2
RGB	rgb(99, 126, 162)
HSL	hsl(214, 25%, 51%)
HSV	hsv(214, 39%, 64%)
CMYK	cmyk(38.9%, 22.2%, 0%, 36.5%)
CIE-LAB	lab(52.04, -0.29, -22.33)
CIE-LCH	lch(52.04, 22.33, 269.26°)
OKLab	oklab(58.62% -0.0157 -0.0619)
OKLCH	oklch(58.62% 0.064 255.8)
XYZ	xyz(19.1260, 20.1820, 37.0631)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637EA2 #A28763

analogous

#639DA2 #637EA2 #6763A2

triadic

#637EA2 #A2637E #7EA263

tetradic

#637EA2 #A2639D #A28763 #63A267

square

#637EA2 #A2639D #A28763 #63A267

split-complementary

#637EA2 #A26763 #9DA263

monochromatic

#344357 #4B607D #637EA2 #899EB9 #B0BDD0

Accessibility & contrast

On white

4.17

#637EA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#637EA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #637EA2

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637EA2	#FFFFFF	#000000	##000000
##637EA2	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7180A4

Deuteranopia (green-blind)

#6A79A1

Tritanopia (blue-blind)

#4E868A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #637ea2;
/* rgb */ color: rgb(99, 126, 162);
/* oklch */ color: oklch(58.6% 0.064 255.8);

Tailwind

colors: {
  custom: {
    50: '#92a3bd',
    500: '#637ea2',
    950: '#000000',
  },
}

SCSS

$custom: #637ea2;
$custom-light: #92a3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#637ea2",
  "rgb": {
    "r": 99,
    "g": 126,
    "b": 162
  },
  "hsl": {
    "h": 214.286,
    "s": 25.301,
    "l": 51.176
  },
  "oklch": {
    "l": 0.58619,
    "c": 0.06383,
    "h": 255.8
  },
  "luminance": 0.20183
}

Semantic roles & 50–950 ramp

primary

#637EA2

secondary

#BEB2A2

accent

#9A66C2

background

#F9FAFB

surface

#F1F3F6

border

#CBCDD0

text

#0D0F12

muted

#7E7F81

Preview Lab

Preview with #637EA2

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

Preview Lab → · Contrast checker → · Palette generator →