#31497D#31497D

#31497D is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.3% C 0.092 H 264.1°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#31497D
RGB	rgb(49, 73, 125)
HSL	hsl(221, 44%, 34%)
HSV	hsv(221, 61%, 49%)
CMYK	cmyk(60.8%, 41.6%, 0%, 51%)
CIE-LAB	lab(31.57, 7.96, -32.31)
CIE-LCH	lch(31.57, 33.28, 283.83°)
OKLab	oklab(41.28% -0.0095 -0.0918)
OKLCH	oklch(41.28% 0.092 264.1)
XYZ	xyz(7.3496, 6.8981, 20.3422)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31497D #7D6531

analogous

#316F7D #31497D #3F317D

triadic

#31497D #7D3149 #497D31

tetradic

#31497D #7D316F #7D6531 #317D3F

square

#31497D #7D316F #7D6531 #317D3F

split-complementary

#31497D #7D3F31 #6F7D31

monochromatic

#0F1625 #202F51 #31497D #4263A9 #6683C3

Accessibility & contrast

On white

8.82

#31497D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#31497D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31497D

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31497D	#FFFFFF	#000000	##FFFFFF
##31497D	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334E7F

Deuteranopia (green-blind)

#29477C

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31497d;
/* rgb */ color: rgb(49, 73, 125);
/* oklch */ color: oklch(41.3% 0.092 264.1);

Tailwind

colors: {
  custom: {
    50: '#707ba3',
    500: '#31497d',
    950: '#000000',
  },
}

SCSS

$custom: #31497d;
$custom-light: #707ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#31497d",
  "rgb": {
    "r": 49,
    "g": 73,
    "b": 125
  },
  "hsl": {
    "h": 221.053,
    "s": 43.678,
    "l": 34.118
  },
  "oklch": {
    "l": 0.41275,
    "c": 0.09226,
    "h": 264.1
  },
  "luminance": 0.06899
}

Semantic roles & 50–950 ramp

primary

#31497D

secondary

#AA9360

accent

#AB54D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #31497D

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

Preview Lab → · Contrast checker → · Palette generator →