#313AA1#313AA1

#313AA1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.9% C 0.164 H 272.9°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#313AA1
RGB	rgb(49, 58, 161)
HSL	hsl(235, 53%, 41%)
HSV	hsv(235, 70%, 63%)
CMYK	cmyk(69.6%, 64%, 0%, 36.9%)
CIE-LAB	lab(30.04, 31.22, -56.88)
CIE-LCH	lch(30.04, 64.89, 298.76°)
OKLab	oklab(40.94% 0.0082 -0.1642)
OKLCH	oklch(40.94% 0.164 272.9)
XYZ	xyz(9.2105, 6.2514, 34.4326)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313AA1 #A19831

analogous

#3172A1 #313AA1 #6031A1

triadic

#313AA1 #A1313A #3AA131

tetradic

#313AA1 #A13172 #A19831 #31A160

square

#313AA1 #A13172 #A19831 #31A160

split-complementary

#313AA1 #A16031 #72A131

monochromatic

#141843 #232972 #313AA1 #4852C7 #777ED6

Accessibility & contrast

On white

9.33

#313AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#313AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AA1

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AA1	#FFFFFF	#000000	##FFFFFF
##313AA1	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA4

Deuteranopia (green-blind)

#00429F

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313aa1;
/* rgb */ color: rgb(49, 58, 161);
/* oklch */ color: oklch(40.9% 0.164 272.9);

Tailwind

colors: {
  custom: {
    50: '#7870be',
    500: '#313aa1',
    950: '#000000',
  },
}

SCSS

$custom: #313aa1;
$custom-light: #7870be;
$custom-dark: #000000;

JSON

{
  "hex": "#313aa1",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 235.179,
    "s": 53.333,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40943,
    "c": 0.16437,
    "h": 272.9
  },
  "luminance": 0.06252
}

Semantic roles & 50–950 ramp

primary

#313AA1

secondary

#BEB870

accent

#D14BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313AA1

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

Preview Lab → · Contrast checker → · Palette generator →