#31489C#31489C

#31489C is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.139 H 268.5°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#31489C
RGB	rgb(49, 72, 156)
HSL	hsl(227, 52%, 40%)
HSV	hsv(227, 69%, 61%)
CMYK	cmyk(68.6%, 53.8%, 0%, 38.8%)
CIE-LAB	lab(33.32, 20.12, -48.52)
CIE-LCH	lch(33.32, 52.52, 292.52°)
OKLab	oklab(43.27% -0.0037 -0.1394)
OKLCH	oklch(43.27% 0.139 268.5)
XYZ	xyz(9.5827, 7.6871, 32.4248)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31489C #9C8531

analogous

#317D9C #31489C #50319C

triadic

#31489C #9C3148 #489C31

tetradic

#31489C #9C317D #9C8531 #319C50

square

#31489C #9C317D #9C8531 #319C50

split-complementary

#31489C #9C5031 #7D9C31

monochromatic

#141D3F #22336D #31489C #4561C5 #7489D3

Accessibility & contrast

On white

8.28

#31489C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#31489C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31489C

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31489C	#FFFFFF	#000000	##FFFFFF
##31489C	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F539F

Deuteranopia (green-blind)

#004A9A

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #31489c;
/* rgb */ color: rgb(49, 72, 156);
/* oklch */ color: oklch(43.3% 0.139 268.5);

Tailwind

colors: {
  custom: {
    50: '#767aba',
    500: '#31489c',
    950: '#000000',
  },
}

SCSS

$custom: #31489c;
$custom-light: #767aba;
$custom-dark: #000000;

JSON

{
  "hex": "#31489c",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 156
  },
  "hsl": {
    "h": 227.103,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43266,
    "c": 0.13947,
    "h": 268.5
  },
  "luminance": 0.07688
}

Semantic roles & 50–950 ramp

primary

#31489C

secondary

#BBAB6D

accent

#BD4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #31489C

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

Preview Lab → · Contrast checker → · Palette generator →