#31497C#31497C

#31497C is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.2% C 0.091 H 263.8°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#31497C
RGB	rgb(49, 73, 124)
HSL	hsl(221, 43%, 34%)
HSV	hsv(221, 60%, 49%)
CMYK	cmyk(60.5%, 41.1%, 0%, 51.4%)
CIE-LAB	lab(31.52, 7.59, -31.78)
CIE-LCH	lch(31.52, 32.67, 283.44°)
OKLab	oklab(41.21% -0.0097 -0.0902)
OKLCH	oklch(41.21% 0.091 263.8)
XYZ	xyz(7.2860, 6.8727, 20.0075)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31497C #7C6431

analogous

#316F7C #31497C #3F317C

triadic

#31497C #7C3149 #497C31

tetradic

#31497C #7C316F #7C6431 #317C3F

square

#31497C #7C316F #7C6431 #317C3F

split-complementary

#31497C #7C3F31 #6F7C31

monochromatic

#0E1524 #202F50 #31497C #4263A8 #6583C2

Accessibility & contrast

On white

8.84

#31497C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#31497C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31497C

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31497C	#FFFFFF	#000000	##FFFFFF
##31497C	1.00	8.84	2.37	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334E7E

Deuteranopia (green-blind)

#2A477B

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31497c;
/* rgb */ color: rgb(49, 73, 124);
/* oklch */ color: oklch(41.2% 0.091 263.8);

Tailwind

colors: {
  custom: {
    50: '#707ba2',
    500: '#31497c',
    950: '#000000',
  },
}

SCSS

$custom: #31497c;
$custom-light: #707ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#31497c",
  "rgb": {
    "r": 49,
    "g": 73,
    "b": 124
  },
  "hsl": {
    "h": 220.8,
    "s": 43.353,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41211,
    "c": 0.09074,
    "h": 263.8
  },
  "luminance": 0.06873
}

Semantic roles & 50–950 ramp

primary

#31497C

secondary

#AA925F

accent

#AB55D3

background

#F7F7FA

surface

#EDEDF3

border

#C8C8CD

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #31497C

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

Preview Lab → · Contrast checker → · Palette generator →