#31589C#31589C

#31589C is a mid, moderate blue. Relative luminance 0.100; OKLCH L 46.8% C 0.119 H 260.7°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#31589C
RGB	rgb(49, 88, 156)
HSL	hsl(218, 52%, 40%)
HSV	hsv(218, 69%, 61%)
CMYK	cmyk(68.6%, 43.6%, 0%, 38.8%)
CIE-LAB	lab(37.90, 9.52, -41.16)
CIE-LCH	lch(37.90, 42.25, 283.02°)
OKLab	oklab(46.76% -0.0192 -0.1175)
OKLCH	oklch(46.76% 0.119 260.7)
XYZ	xyz(10.7550, 10.0316, 32.8155)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31589C #9C7531

analogous

#318D9C #31589C #40319C

triadic

#31589C #9C3158 #589C31

tetradic

#31589C #9C318D #9C7531 #319C40

square

#31589C #9C318D #9C7531 #319C40

split-complementary

#31589C #9C4031 #8D9C31

monochromatic

#14233F #223E6D #31589C #4574C5 #7497D3

Accessibility & contrast

On white

6.98

#31589C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#31589C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31589C

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31589C	#FFFFFF	#000000	##FFFFFF
##31589C	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385F9F

Deuteranopia (green-blind)

#26559B

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #31589c;
/* rgb */ color: rgb(49, 88, 156);
/* oklch */ color: oklch(46.8% 0.119 260.7);

Tailwind

colors: {
  custom: {
    50: '#7586b9',
    500: '#31589c',
    950: '#000000',
  },
}

SCSS

$custom: #31589c;
$custom-light: #7586b9;
$custom-dark: #000000;

JSON

{
  "hex": "#31589c",
  "rgb": {
    "r": 49,
    "g": 88,
    "b": 156
  },
  "hsl": {
    "h": 218.131,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46762,
    "c": 0.1191,
    "h": 260.7
  },
  "luminance": 0.10033
}

Semantic roles & 50–950 ramp

primary

#31589C

secondary

#BB9F6D

accent

#A74CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #31589C

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

Preview Lab → · Contrast checker → · Palette generator →