#313AA0#313AA0

#313AA0 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.163 H 272.9°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#313AA0
RGB	rgb(49, 58, 160)
HSL	hsl(235, 53%, 41%)
HSV	hsv(235, 69%, 63%)
CMYK	cmyk(69.4%, 63.8%, 0%, 37.3%)
CIE-LAB	lab(29.95, 30.86, -56.42)
CIE-LCH	lch(29.95, 64.31, 298.68°)
OKLab	oklab(40.85% 0.0082 -0.1628)
OKLCH	oklch(40.85% 0.163 272.9)
XYZ	xyz(9.1227, 6.2163, 33.9700)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313AA0 #A09731

analogous

#3171A0 #313AA0 #5F31A0

triadic

#313AA0 #A0313A #3AA031

tetradic

#313AA0 #A03171 #A09731 #31A05F

square

#313AA0 #A03171 #A09731 #31A05F

split-complementary

#313AA0 #A05F31 #71A031

monochromatic

#141842 #232971 #313AA0 #4752C7 #767ED5

Accessibility & contrast

On white

9.36

#313AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#313AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AA0

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AA0	#FFFFFF	#000000	##FFFFFF
##313AA0	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00429E

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313aa0;
/* rgb */ color: rgb(49, 58, 160);
/* oklch */ color: oklch(40.9% 0.163 272.9);

Tailwind

colors: {
  custom: {
    50: '#7870bd',
    500: '#313aa0',
    950: '#000000',
  },
}

SCSS

$custom: #313aa0;
$custom-light: #7870bd;
$custom-dark: #000000;

JSON

{
  "hex": "#313aa0",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 160
  },
  "hsl": {
    "h": 235.135,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40853,
    "c": 0.16302,
    "h": 272.9
  },
  "luminance": 0.06217
}

Semantic roles & 50–950 ramp

primary

#313AA0

secondary

#BDB770

accent

#D14BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313AA0

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

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