#317DB5#317DB5

#317DB5 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.9% C 0.114 H 244.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#317DB5
RGB	rgb(49, 125, 181)
HSL	hsl(205, 57%, 45%)
HSV	hsv(205, 73%, 71%)
CMYK	cmyk(72.9%, 30.9%, 0%, 29%)
CIE-LAB	lab(50.28, -4.32, -36.24)
CIE-LCH	lch(50.28, 36.50, 263.20°)
OKLab	oklab(56.88% -0.0495 -0.1026)
OKLCH	oklch(56.88% 0.114 244.2)
XYZ	xyz(16.9375, 18.6545, 46.4151)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DB5 #B56931

analogous

#31B5AB #317DB5 #313BB5

triadic

#317DB5 #B5317D #7DB531

tetradic

#317DB5 #AB31B5 #B56931 #3BB531

square

#317DB5 #AB31B5 #B56931 #3BB531

split-complementary

#317DB5 #B5313B #B5AB31

monochromatic

#173A55 #245C85 #317DB5 #539BD0 #83B7DD

Accessibility & contrast

On white

4.44

#317DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#317DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DB5

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DB5	#FFFFFF	#000000	##000000
##317DB5	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637FB7

Deuteranopia (green-blind)

#5172B4

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #317db5;
/* rgb */ color: rgb(49, 125, 181);
/* oklch */ color: oklch(56.9% 0.114 244.2);

Tailwind

colors: {
  custom: {
    50: '#7aa2cb',
    500: '#317db5',
    950: '#000000',
  },
}

SCSS

$custom: #317db5;
$custom-light: #7aa2cb;
$custom-dark: #000000;

JSON

{
  "hex": "#317db5",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 181
  },
  "hsl": {
    "h": 205.455,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56884,
    "c": 0.11393,
    "h": 244.2
  },
  "luminance": 0.18656
}

Semantic roles & 50–950 ramp

primary

#317DB5

secondary

#C79B7B

accent

#8847E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #317DB5

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

Preview Lab → · Contrast checker → · Palette generator →