#638FC0#638FC0

#638FC0 is a light, moderate cyan. Relative luminance 0.261; OKLCH L 63.8% C 0.088 H 251.9°. Best body text is #000000 at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#638FC0
RGB	rgb(99, 143, 192)
HSL	hsl(212, 42%, 57%)
HSV	hsv(212, 48%, 75%)
CMYK	cmyk(48.4%, 25.5%, 0%, 24.7%)
CIE-LAB	lab(58.13, -1.42, -30.11)
CIE-LCH	lch(58.13, 30.14, 267.30°)
OKLab	oklab(63.81% -0.0275 -0.0841)
OKLCH	oklch(63.81% 0.089 251.9)
XYZ	xyz(24.4792, 26.1016, 53.6071)
Luminance	0.2610 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638FC0 #C09463

analogous

#63BEC0 #638FC0 #6663C0

triadic

#638FC0 #C0638F #8FC063

tetradic

#638FC0 #C063BE #C09463 #63C066

square

#638FC0 #C063BE #C09463 #63C066

split-complementary

#638FC0 #C06663 #BEC063

monochromatic

#315278 #4270A4 #638FC0 #8FAED2 #BACEE3

Accessibility & contrast

On white

3.38

#638FC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.22

#638FC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638FC0

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638FC0	#FFFFFF	#000000	##000000
##638FC0	1.00	3.38	6.22	6.22
#FFFFFF	3.38	1.00	21.00	21.00
#000000	6.22	21.00	1.00	1.00
##000000	6.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C91C2

Deuteranopia (green-blind)

#7088BF

Tritanopia (blue-blind)

#399AA0

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #638fc0;
/* rgb */ color: rgb(99, 143, 192);
/* oklch */ color: oklch(63.8% 0.088 251.9);

Tailwind

colors: {
  custom: {
    50: '#94afd3',
    500: '#638fc0',
    950: '#000000',
  },
}

SCSS

$custom: #638fc0;
$custom-light: #94afd3;
$custom-dark: #000000;

JSON

{
  "hex": "#638fc0",
  "rgb": {
    "r": 99,
    "g": 143,
    "b": 192
  },
  "hsl": {
    "h": 211.613,
    "s": 42.466,
    "l": 57.059
  },
  "oklch": {
    "l": 0.63807,
    "c": 0.0885,
    "h": 251.9
  },
  "luminance": 0.26103
}

Semantic roles & 50–950 ramp

primary

#638FC0

secondary

#D2C0AC

accent

#9756D2

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E1014

muted

#7E7F82

Preview Lab

Preview with #638FC0

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

Preview Lab → · Contrast checker → · Palette generator →