#313F98#313F98

#313F98 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.1% C 0.146 H 271.7°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#313F98
RGB	rgb(49, 63, 152)
HSL	hsl(232, 51%, 39%)
HSV	hsv(232, 68%, 60%)
CMYK	cmyk(67.8%, 58.6%, 0%, 40.4%)
CIE-LAB	lab(30.58, 24.65, -50.54)
CIE-LCH	lch(30.58, 56.23, 296.00°)
OKLab	oklab(41.11% 0.0042 -0.1455)
OKLCH	oklch(41.11% 0.146 271.7)
XYZ	xyz(8.7097, 6.4742, 30.4903)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F98 #988A31

analogous

#317398 #313F98 #573198

triadic

#313F98 #98313F #3F9831

tetradic

#313F98 #983173 #988A31 #319857

square

#313F98 #983173 #988A31 #319857

split-complementary

#313F98 #985731 #739831

monochromatic

#13193B #222C6A #313F98 #4455C3 #727FD2

Accessibility & contrast

On white

9.15

#313F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#313F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F98

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F98	#FFFFFF	#000000	##FFFFFF
##313F98	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9B

Deuteranopia (green-blind)

#004396

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313f98;
/* rgb */ color: rgb(49, 63, 152);
/* oklch */ color: oklch(41.1% 0.146 271.7);

Tailwind

colors: {
  custom: {
    50: '#7673b7',
    500: '#313f98',
    950: '#000000',
  },
}

SCSS

$custom: #313f98;
$custom-light: #7673b7;
$custom-dark: #000000;

JSON

{
  "hex": "#313f98",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 152
  },
  "hsl": {
    "h": 231.845,
    "s": 51.244,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41111,
    "c": 0.14555,
    "h": 271.7
  },
  "luminance": 0.06475
}

Semantic roles & 50–950 ramp

primary

#313F98

secondary

#B9AF6B

accent

#C74DDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313F98

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

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