#31499C#31499C

#31499C is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.5% C 0.138 H 268.1°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#31499C
RGB	rgb(49, 73, 156)
HSL	hsl(227, 52%, 40%)
HSV	hsv(227, 69%, 61%)
CMYK	cmyk(68.6%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(33.60, 19.45, -48.07)
CIE-LCH	lch(33.60, 51.86, 292.03°)
OKLab	oklab(43.48% -0.0047 -0.1381)
OKLCH	oklch(43.48% 0.138 268.1)
XYZ	xyz(9.6479, 7.8174, 32.4465)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31499C #9C8431

analogous

#317E9C #31499C #4E319C

triadic

#31499C #9C3149 #499C31

tetradic

#31499C #9C317E #9C8431 #319C4E

square

#31499C #9C317E #9C8431 #319C4E

split-complementary

#31499C #9C4E31 #7E9C31

monochromatic

#141D3F #22336D #31499C #4562C5 #7489D3

Accessibility & contrast

On white

8.19

#31499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#31499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31499C

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31499C	#FFFFFF	#000000	##FFFFFF
##31499C	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13549F

Deuteranopia (green-blind)

#004A9A

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31499c;
/* rgb */ color: rgb(49, 73, 156);
/* oklch */ color: oklch(43.5% 0.138 268.1);

Tailwind

colors: {
  custom: {
    50: '#767bba',
    500: '#31499c',
    950: '#000000',
  },
}

SCSS

$custom: #31499c;
$custom-light: #767bba;
$custom-dark: #000000;

JSON

{
  "hex": "#31499c",
  "rgb": {
    "r": 49,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 226.542,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43475,
    "c": 0.13817,
    "h": 268.1
  },
  "luminance": 0.07818
}

Semantic roles & 50–950 ramp

primary

#31499C

secondary

#BBAA6D

accent

#BB4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #31499C

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

Preview Lab → · Contrast checker → · Palette generator →