#31589B#31589B

#31589B is a mid, moderate blue. Relative luminance 0.100; OKLCH L 46.7% C 0.118 H 260.5°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#31589B
RGB	rgb(49, 88, 155)
HSL	hsl(218, 52%, 40%)
HSV	hsv(218, 68%, 61%)
CMYK	cmyk(68.4%, 43.2%, 0%, 39.2%)
CIE-LAB	lab(37.84, 9.14, -40.66)
CIE-LCH	lch(37.84, 41.67, 282.67°)
OKLab	oklab(46.7% -0.0194 -0.116)
OKLCH	oklch(46.7% 0.118 260.5)
XYZ	xyz(10.6706, 9.9979, 32.3714)
Luminance	0.1000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31589B #9B7431

analogous

#318D9B #31589B #3F319B

triadic

#31589B #9B3158 #589B31

tetradic

#31589B #9B318D #9B7431 #319B3F

square

#31589B #9B318D #9B7431 #319B3F

split-complementary

#31589B #9B3F31 #8D9B31

monochromatic

#14233E #223E6D #31589B #4574C4 #7397D3

Accessibility & contrast

On white

7.00

#31589B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#31589B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31589B

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31589B	#FFFFFF	#000000	##FFFFFF
##31589B	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395E9E

Deuteranopia (green-blind)

#27559A

Tritanopia (blue-blind)

#006772

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #31589b;
/* rgb */ color: rgb(49, 88, 155);
/* oklch */ color: oklch(46.7% 0.118 260.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#31589b",
  "rgb": {
    "r": 49,
    "g": 88,
    "b": 155
  },
  "hsl": {
    "h": 217.925,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.46696,
    "c": 0.11767,
    "h": 260.5
  },
  "luminance": 0.09999
}

Semantic roles & 50–950 ramp

primary

#31589B

secondary

#BB9E6D

accent

#A74CDB

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #31589B

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

Preview Lab → · Contrast checker → · Palette generator →