#31357C#31357C

#31357C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.8% C 0.118 H 276.5°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#31357C
RGB	rgb(49, 53, 124)
HSL	hsl(237, 43%, 34%)
HSV	hsv(237, 60%, 49%)
CMYK	cmyk(60.5%, 57.3%, 0%, 51.4%)
CIE-LAB	lab(25.73, 21.17, -41.06)
CIE-LCH	lch(25.73, 46.19, 297.28°)
OKLab	oklab(36.81% 0.0133 -0.1177)
OKLCH	oklch(36.81% 0.118 276.5)
XYZ	xyz(6.1766, 4.6540, 19.6377)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31357C #7C7831

analogous

#315B7C #31357C #53317C

triadic

#31357C #7C3135 #357C31

tetradic

#31357C #7C315B #7C7831 #317C53

square

#31357C #7C315B #7C7831 #317C53

split-complementary

#31357C #7C5331 #5B7C31

monochromatic

#0E1024 #202250 #31357C #4248A8 #656AC2

Accessibility & contrast

On white

10.88

#31357C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#31357C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31357C

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31357C	#FFFFFF	#000000	##FFFFFF
##31357C	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03407E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31357c;
/* rgb */ color: rgb(49, 53, 124);
/* oklch */ color: oklch(36.8% 0.118 276.5);

Tailwind

colors: {
  custom: {
    50: '#716ca2',
    500: '#31357c',
    950: '#000000',
  },
}

SCSS

$custom: #31357c;
$custom-light: #716ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#31357c",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 124
  },
  "hsl": {
    "h": 236.8,
    "s": 43.353,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36807,
    "c": 0.11846,
    "h": 276.5
  },
  "luminance": 0.04654
}

Semantic roles & 50–950 ramp

primary

#31357C

secondary

#AAA65F

accent

#CC55D3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31357C

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

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