#317DAB#317DAB

#317DAB is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.4% C 0.103 H 239.1°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#317DAB
RGB	rgb(49, 125, 171)
HSL	hsl(203, 55%, 43%)
HSV	hsv(203, 71%, 67%)
CMYK	cmyk(71.3%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(49.81, -7.88, -31.20)
CIE-LCH	lch(49.81, 32.18, 255.83°)
OKLab	oklab(56.36% -0.0527 -0.088)
OKLCH	oklch(56.36% 0.103 239.1)
XYZ	xyz(15.9481, 18.2587, 41.2040)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DAB #AB5F31

analogous

#31AB9C #317DAB #3140AB

triadic

#317DAB #AB317D #7DAB31

tetradic

#317DAB #9C31AB #AB5F31 #40AB31

square

#317DAB #9C31AB #AB5F31 #40AB31

split-complementary

#317DAB #AB3140 #AB9C31

monochromatic

#16374C #235A7B #317DAB #4D9CCC #7DB7DA

Accessibility & contrast

On white

4.51

#317DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#317DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DAB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DAB	#FFFFFF	#000000	##000000
##317DAB	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687DAD

Deuteranopia (green-blind)

#5771AA

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #317dab;
/* rgb */ color: rgb(49, 125, 171);
/* oklch */ color: oklch(56.4% 0.103 239.1);

Tailwind

colors: {
  custom: {
    50: '#78a2c4',
    500: '#317dab',
    950: '#000000',
  },
}

SCSS

$custom: #317dab;
$custom-light: #78a2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#317dab",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 202.623,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.56355,
    "c": 0.10256,
    "h": 239.1
  },
  "luminance": 0.1826
}

Semantic roles & 50–950 ramp

primary

#317DAB

secondary

#C29275

accent

#8149DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #317DAB

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

Preview Lab → · Contrast checker → · Palette generator →