#317BB3#317BB3

#317BB3 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.3% C 0.113 H 244.8°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#317BB3
RGB	rgb(49, 123, 179)
HSL	hsl(206, 57%, 45%)
HSV	hsv(206, 73%, 70%)
CMYK	cmyk(72.6%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(49.58, -3.86, -36.19)
CIE-LCH	lch(49.58, 36.39, 263.92°)
OKLab	oklab(56.3% -0.0481 -0.1025)
OKLCH	oklch(56.3% 0.113 244.8)
XYZ	xyz(16.4831, 18.0717, 45.2586)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BB3 #B36931

analogous

#31B3AA #317BB3 #313AB3

triadic

#317BB3 #B3317B #7BB331

tetradic

#317BB3 #AA31B3 #B36931 #3AB331

square

#317BB3 #AA31B3 #B36931 #3AB331

split-complementary

#317BB3 #B3313A #B3AA31

monochromatic

#173953 #245A83 #317BB3 #5299D0 #82B6DD

Accessibility & contrast

On white

4.55

#317BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#317BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BB3

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BB3	#FFFFFF	#000000	##000000
##317BB3	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617DB5

Deuteranopia (green-blind)

#4F70B2

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #317bb3;
/* rgb */ color: rgb(49, 123, 179);
/* oklch */ color: oklch(56.3% 0.113 244.8);

Tailwind

colors: {
  custom: {
    50: '#7aa0ca',
    500: '#317bb3',
    950: '#000000',
  },
}

SCSS

$custom: #317bb3;
$custom-light: #7aa0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#317bb3",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 205.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56301,
    "c": 0.11322,
    "h": 244.8
  },
  "luminance": 0.18074
}

Semantic roles & 50–950 ramp

primary

#317BB3

secondary

#C69B7A

accent

#8948E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #317BB3

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

Preview Lab → · Contrast checker → · Palette generator →