#313CAA#313CAA

#313CAA is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.174 H 272.0°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#313CAA
RGB	rgb(49, 60, 170)
HSL	hsl(235, 55%, 43%)
HSV	hsv(235, 71%, 67%)
CMYK	cmyk(71.2%, 64.7%, 0%, 33.3%)
CIE-LAB	lab(31.31, 33.16, -60.21)
CIE-LCH	lch(31.31, 68.74, 298.84°)
OKLab	oklab(42.12% 0.0062 -0.1739)
OKLCH	oklch(42.12% 0.174 272)
XYZ	xyz(10.1357, 6.7860, 38.7981)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313CAA #AA9F31

analogous

#3179AA #313CAA #6231AA

triadic

#313CAA #AA313C #3CAA31

tetradic

#313CAA #AA3179 #AA9F31 #31AA62

square

#313CAA #AA3179 #AA9F31 #31AA62

split-complementary

#313CAA #AA6231 #79AA31

monochromatic

#161A4B #232B7A #313CAA #4D58CC #7C85D9

Accessibility & contrast

On white

8.91

#313CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#313CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CAA

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CAA	#FFFFFF	#000000	##FFFFFF
##313CAA	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0044A8

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #313caa;
/* rgb */ color: rgb(49, 60, 170);
/* oklch */ color: oklch(42.1% 0.174 272.0);

Tailwind

colors: {
  custom: {
    50: '#7a72c4',
    500: '#313caa',
    950: '#000000',
  },
}

SCSS

$custom: #313caa;
$custom-light: #7a72c4;
$custom-dark: #000000;

JSON

{
  "hex": "#313caa",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 170
  },
  "hsl": {
    "h": 234.545,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42122,
    "c": 0.17403,
    "h": 272
  },
  "luminance": 0.06787
}

Semantic roles & 50–950 ramp

primary

#313CAA

secondary

#C2BB75

accent

#D149DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313CAA

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

Preview Lab → · Contrast checker → · Palette generator →