#313C98#313C98

#313C98 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.149 H 272.6°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#313C98
RGB	rgb(49, 60, 152)
HSL	hsl(234, 51%, 39%)
HSV	hsv(234, 68%, 60%)
CMYK	cmyk(67.8%, 60.5%, 0%, 40.4%)
CIE-LAB	lab(29.79, 26.65, -51.82)
CIE-LCH	lch(29.79, 58.27, 297.21°)
OKLab	oklab(40.53% 0.0069 -0.1493)
OKLCH	oklch(40.53% 0.149 272.6)
XYZ	xyz(8.5481, 6.1509, 30.4364)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C98 #988D31

analogous

#317098 #313C98 #5A3198

triadic

#313C98 #98313C #3C9831

tetradic

#313C98 #983170 #988D31 #31985A

square

#313C98 #983170 #988D31 #31985A

split-complementary

#313C98 #985A31 #709831

monochromatic

#13173B #222A6A #313C98 #4451C3 #727CD2

Accessibility & contrast

On white

9.42

#313C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#313C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C98

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C98	#FFFFFF	#000000	##FFFFFF
##313C98	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9B

Deuteranopia (green-blind)

#004296

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #313c98;
/* rgb */ color: rgb(49, 60, 152);
/* oklch */ color: oklch(40.5% 0.149 272.6);

Tailwind

colors: {
  custom: {
    50: '#7671b7',
    500: '#313c98',
    950: '#000000',
  },
}

SCSS

$custom: #313c98;
$custom-light: #7671b7;
$custom-dark: #000000;

JSON

{
  "hex": "#313c98",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 152
  },
  "hsl": {
    "h": 233.592,
    "s": 51.244,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40525,
    "c": 0.14945,
    "h": 272.6
  },
  "luminance": 0.06152
}

Semantic roles & 50–950 ramp

primary

#313C98

secondary

#B9B16B

accent

#CC4DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313C98

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

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