#31459B#31459B

#31459B is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.6% C 0.142 H 269.6°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#31459B
RGB	rgb(49, 69, 155)
HSL	hsl(229, 52%, 40%)
HSV	hsv(229, 68%, 61%)
CMYK	cmyk(68.4%, 55.5%, 0%, 39.2%)
CIE-LAB	lab(32.42, 21.75, -49.37)
CIE-LCH	lch(32.42, 53.95, 293.78°)
OKLab	oklab(42.57% -0.0011 -0.142)
OKLCH	oklch(42.57% 0.142 269.6)
XYZ	xyz(9.3091, 7.2749, 31.9176)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31459B #9B8731

analogous

#317A9B #31459B #52319B

triadic

#31459B #9B3145 #459B31

tetradic

#31459B #9B317A #9B8731 #319B52

square

#31459B #9B317A #9B8731 #319B52

split-complementary

#31459B #9B5231 #7A9B31

monochromatic

#141C3E #22306D #31459B #455DC4 #7386D3

Accessibility & contrast

On white

8.55

#31459B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#31459B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31459B

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31459B	#FFFFFF	#000000	##FFFFFF
##31459B	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01519E

Deuteranopia (green-blind)

#004899

Tritanopia (blue-blind)

#005A69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #31459b;
/* rgb */ color: rgb(49, 69, 155);
/* oklch */ color: oklch(42.6% 0.142 269.6);

Tailwind

colors: {
  custom: {
    50: '#7678b9',
    500: '#31459b',
    950: '#000000',
  },
}

SCSS

$custom: #31459b;
$custom-light: #7678b9;
$custom-dark: #000000;

JSON

{
  "hex": "#31459b",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 155
  },
  "hsl": {
    "h": 228.679,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.42566,
    "c": 0.14196,
    "h": 269.6
  },
  "luminance": 0.07276
}

Semantic roles & 50–950 ramp

primary

#31459B

secondary

#BBAC6D

accent

#C04CDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #31459B

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

Preview Lab → · Contrast checker → · Palette generator →