#317BB4#317BB4

#317BB4 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.4% C 0.114 H 245.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#317BB4
RGB	rgb(49, 123, 180)
HSL	hsl(206, 57%, 45%)
HSV	hsv(206, 73%, 71%)
CMYK	cmyk(72.8%, 31.7%, 0%, 29.4%)
CIE-LAB	lab(49.63, -3.50, -36.69)
CIE-LCH	lch(49.63, 36.85, 264.55°)
OKLab	oklab(56.36% -0.0478 -0.1039)
OKLCH	oklch(56.36% 0.114 245.3)
XYZ	xyz(16.5846, 18.1123, 45.7931)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BB4 #B46A31

analogous

#31B4AC #317BB4 #313AB4

triadic

#317BB4 #B4317B #7BB431

tetradic

#317BB4 #AC31B4 #B46A31 #3AB431

square

#317BB4 #AC31B4 #B46A31 #3AB431

split-complementary

#317BB4 #B4313A #B4AC31

monochromatic

#173954 #245A84 #317BB4 #5299D0 #82B6DD

Accessibility & contrast

On white

4.54

#317BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#317BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BB4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BB4	#FFFFFF	#000000	##000000
##317BB4	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617DB6

Deuteranopia (green-blind)

#4F70B3

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #317bb4;
/* rgb */ color: rgb(49, 123, 180);
/* oklch */ color: oklch(56.4% 0.114 245.3);

Tailwind

colors: {
  custom: {
    50: '#7aa0ca',
    500: '#317bb4',
    950: '#000000',
  },
}

SCSS

$custom: #317bb4;
$custom-light: #7aa0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#317bb4",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 180
  },
  "hsl": {
    "h": 206.107,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56356,
    "c": 0.11441,
    "h": 245.3
  },
  "luminance": 0.18114
}

Semantic roles & 50–950 ramp

primary

#317BB4

secondary

#C69B7B

accent

#8A47E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #317BB4

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

Preview Lab → · Contrast checker → · Palette generator →