#317FB5#317FB5

#317FB5 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.112 H 242.7°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#317FB5
RGB	rgb(49, 127, 181)
HSL	hsl(205, 57%, 45%)
HSV	hsv(205, 73%, 71%)
CMYK	cmyk(72.9%, 29.8%, 0%, 29%)
CIE-LAB	lab(50.88, -5.50, -35.30)
CIE-LCH	lch(50.88, 35.73, 261.14°)
OKLab	oklab(57.36% -0.0515 -0.0998)
OKLCH	oklch(57.36% 0.112 242.7)
XYZ	xyz(17.1933, 19.1660, 46.5004)
Luminance	0.1917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317FB5 #B56731

analogous

#31B5A9 #317FB5 #313DB5

triadic

#317FB5 #B5317F #7FB531

tetradic

#317FB5 #A931B5 #B56731 #3DB531

square

#317FB5 #A931B5 #B56731 #3DB531

split-complementary

#317FB5 #B5313D #B5A931

monochromatic

#173B55 #245D85 #317FB5 #539DD0 #83B8DD

Accessibility & contrast

On white

4.34

#317FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#317FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317FB5

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317FB5	#FFFFFF	#000000	##000000
##317FB5	1.00	4.34	4.83	4.83
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6680B7

Deuteranopia (green-blind)

#5474B4

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #317fb5;
/* rgb */ color: rgb(49, 127, 181);
/* oklch */ color: oklch(57.4% 0.112 242.7);

Tailwind

colors: {
  custom: {
    50: '#7aa3cb',
    500: '#317fb5',
    950: '#000000',
  },
}

SCSS

$custom: #317fb5;
$custom-light: #7aa3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#317fb5",
  "rgb": {
    "r": 49,
    "g": 127,
    "b": 181
  },
  "hsl": {
    "h": 204.545,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.57358,
    "c": 0.11233,
    "h": 242.7
  },
  "luminance": 0.19168
}

Semantic roles & 50–950 ramp

primary

#317FB5

secondary

#C79A7B

accent

#8647E1

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #317FB5

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

Preview Lab → · Contrast checker → · Palette generator →