#313BA0#313BA0

#313BA0 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.162 H 272.6°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#313BA0
RGB	rgb(49, 59, 160)
HSL	hsl(235, 53%, 41%)
HSV	hsv(235, 69%, 63%)
CMYK	cmyk(69.4%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(30.20, 30.21, -56.01)
CIE-LCH	lch(30.20, 63.64, 298.34°)
OKLab	oklab(41.04% 0.0075 -0.1616)
OKLCH	oklch(41.04% 0.162 272.6)
XYZ	xyz(9.1736, 6.3181, 33.9870)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313BA0 #A09631

analogous

#3172A0 #313BA0 #5E31A0

triadic

#313BA0 #A0313B #3BA031

tetradic

#313BA0 #A03172 #A09631 #31A05E

square

#313BA0 #A03172 #A09631 #31A05E

split-complementary

#313BA0 #A05E31 #72A031

monochromatic

#141842 #232A71 #313BA0 #4753C7 #767FD5

Accessibility & contrast

On white

9.28

#313BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#313BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BA0

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BA0	#FFFFFF	#000000	##FFFFFF
##313BA0	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00429E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313ba0;
/* rgb */ color: rgb(49, 59, 160);
/* oklch */ color: oklch(41.0% 0.162 272.6);

Tailwind

colors: {
  custom: {
    50: '#7871bd',
    500: '#313ba0',
    950: '#000000',
  },
}

SCSS

$custom: #313ba0;
$custom-light: #7871bd;
$custom-dark: #000000;

JSON

{
  "hex": "#313ba0",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 234.595,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41036,
    "c": 0.16177,
    "h": 272.6
  },
  "luminance": 0.06319
}

Semantic roles & 50–950 ramp

primary

#313BA0

secondary

#BDB670

accent

#CF4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313BA0

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

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