#313E98#313E98

#313E98 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.147 H 272.0°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#313E98
RGB	rgb(49, 62, 152)
HSL	hsl(232, 51%, 39%)
HSV	hsv(232, 68%, 60%)
CMYK	cmyk(67.8%, 59.2%, 0%, 40.4%)
CIE-LAB	lab(30.31, 25.32, -50.97)
CIE-LCH	lch(30.31, 56.91, 296.41°)
OKLab	oklab(40.91% 0.0051 -0.1468)
OKLCH	oklch(40.91% 0.147 272)
XYZ	xyz(8.6548, 6.3644, 30.4720)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E98 #988B31

analogous

#317298 #313E98 #583198

triadic

#313E98 #98313E #3E9831

tetradic

#313E98 #983172 #988B31 #319858

square

#313E98 #983172 #988B31 #319858

split-complementary

#313E98 #985831 #729831

monochromatic

#13183B #222B6A #313E98 #4454C3 #727ED2

Accessibility & contrast

On white

9.24

#313E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#313E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E98

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E98	#FFFFFF	#000000	##FFFFFF
##313E98	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9B

Deuteranopia (green-blind)

#004396

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313e98;
/* rgb */ color: rgb(49, 62, 152);
/* oklch */ color: oklch(40.9% 0.147 272.0);

Tailwind

colors: {
  custom: {
    50: '#7673b7',
    500: '#313e98',
    950: '#000000',
  },
}

SCSS

$custom: #313e98;
$custom-light: #7673b7;
$custom-dark: #000000;

JSON

{
  "hex": "#313e98",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 152
  },
  "hsl": {
    "h": 232.427,
    "s": 51.244,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40914,
    "c": 0.14685,
    "h": 272
  },
  "luminance": 0.06365
}

Semantic roles & 50–950 ramp

primary

#313E98

secondary

#B9B06B

accent

#C94DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313E98

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

Preview Lab → · Contrast checker → · Palette generator →