#313C95#313C95

#313C95 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.145 H 272.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#313C95
RGB	rgb(49, 60, 149)
HSL	hsl(233, 51%, 39%)
HSV	hsv(233, 67%, 58%)
CMYK	cmyk(67.1%, 59.7%, 0%, 41.6%)
CIE-LAB	lab(29.55, 25.55, -50.38)
CIE-LCH	lch(29.55, 56.49, 296.89°)
OKLab	oklab(40.27% 0.0069 -0.1451)
OKLCH	oklch(40.27% 0.145 272.7)
XYZ	xyz(8.3055, 6.0539, 29.1588)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C95 #958A31

analogous

#316E95 #313C95 #583195

triadic

#313C95 #95313C #3C9531

tetradic

#313C95 #95316E #958A31 #319558

square

#313C95 #95316E #958A31 #319558

split-complementary

#313C95 #955831 #6E9531

monochromatic

#131739 #222967 #313C95 #4250C1 #707BD0

Accessibility & contrast

On white

9.50

#313C95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#313C95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C95

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C95	#FFFFFF	#000000	##FFFFFF
##313C95	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A98

Deuteranopia (green-blind)

#004193

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #313c95;
/* rgb */ color: rgb(49, 60, 149);
/* oklch */ color: oklch(40.3% 0.145 272.7);

Tailwind

colors: {
  custom: {
    50: '#7571b5',
    500: '#313c95',
    950: '#000000',
  },
}

SCSS

$custom: #313c95;
$custom-light: #7571b5;
$custom-dark: #000000;

JSON

{
  "hex": "#313c95",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 149
  },
  "hsl": {
    "h": 233.4,
    "s": 50.505,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40269,
    "c": 0.14522,
    "h": 272.7
  },
  "luminance": 0.06055
}

Semantic roles & 50–950 ramp

primary

#313C95

secondary

#B8AF6A

accent

#CB4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313C95

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

Preview Lab → · Contrast checker → · Palette generator →