#313B95#313B95

#313B95 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.147 H 273.0°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#313B95
RGB	rgb(49, 59, 149)
HSL	hsl(234, 51%, 39%)
HSV	hsv(234, 67%, 58%)
CMYK	cmyk(67.1%, 60.4%, 0%, 41.6%)
CIE-LAB	lab(29.29, 26.21, -50.81)
CIE-LCH	lch(29.29, 57.17, 297.29°)
OKLab	oklab(40.08% 0.0077 -0.1463)
OKLCH	oklch(40.08% 0.147 273)
XYZ	xyz(8.2536, 5.9501, 29.1415)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B95 #958B31

analogous

#316D95 #313B95 #593195

triadic

#313B95 #95313B #3B9531

tetradic

#313B95 #95316D #958B31 #319559

square

#313B95 #95316D #958B31 #319559

split-complementary

#313B95 #955931 #6D9531

monochromatic

#131739 #222967 #313B95 #424FC1 #707AD0

Accessibility & contrast

On white

9.59

#313B95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#313B95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B95

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B95	#FFFFFF	#000000	##FFFFFF
##313B95	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A98

Deuteranopia (green-blind)

#004193

Tritanopia (blue-blind)

#005162

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313b95;
/* rgb */ color: rgb(49, 59, 149);
/* oklch */ color: oklch(40.1% 0.147 273.0);

Tailwind

colors: {
  custom: {
    50: '#7570b5',
    500: '#313b95',
    950: '#000000',
  },
}

SCSS

$custom: #313b95;
$custom-light: #7570b5;
$custom-dark: #000000;

JSON

{
  "hex": "#313b95",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 149
  },
  "hsl": {
    "h": 234,
    "s": 50.505,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40075,
    "c": 0.14652,
    "h": 273
  },
  "luminance": 0.05951
}

Semantic roles & 50–950 ramp

primary

#313B95

secondary

#B8B06A

accent

#CC4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313B95

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

Preview Lab → · Contrast checker → · Palette generator →