#31299B#31299B

#31299B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.5% C 0.176 H 276.8°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#31299B
RGB	rgb(49, 41, 155)
HSL	hsl(244, 58%, 38%)
HSV	hsv(244, 74%, 61%)
CMYK	cmyk(68.4%, 73.5%, 0%, 39.2%)
CIE-LAB	lab(25.58, 39.67, -60.55)
CIE-LCH	lch(25.58, 72.39, 303.23°)
OKLab	oklab(37.55% 0.0209 -0.1749)
OKLCH	oklch(37.55% 0.176 276.8)
XYZ	xyz(7.9740, 4.6047, 31.4726)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31299B #939B29

analogous

#295A9B #31299B #6A299B

triadic

#31299B #9B3129 #299B31

tetradic

#31299B #9B295A #939B29 #299B6A

square

#31299B #9B295A #939B29 #299B6A

split-complementary

#31299B #9B6A29 #5A9B29

monochromatic

#120F3A #221C6B #31299B #4137CA #6F67D7

Accessibility & contrast

On white

10.93

#31299B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#31299B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31299B

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31299B	#FFFFFF	#000000	##FFFFFF
##31299B	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31299b;
/* rgb */ color: rgb(49, 41, 155);
/* oklch */ color: oklch(37.5% 0.176 276.8);

Tailwind

colors: {
  custom: {
    50: '#7864ba',
    500: '#31299b',
    950: '#000000',
  },
}

SCSS

$custom: #31299b;
$custom-light: #7864ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31299b",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 155
  },
  "hsl": {
    "h": 244.211,
    "s": 58.163,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37545,
    "c": 0.17618,
    "h": 276.8
  },
  "luminance": 0.04605
}

Semantic roles & 50–950 ramp

primary

#31299B

secondary

#B7BD63

accent

#E146D7

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #31299B

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

Preview Lab → · Contrast checker → · Palette generator →