#313AA3#313AA3

#313AA3 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.167 H 272.8°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#313AA3
RGB	rgb(49, 58, 163)
HSL	hsl(235, 54%, 42%)
HSV	hsv(235, 70%, 64%)
CMYK	cmyk(69.9%, 64.4%, 0%, 36.1%)
CIE-LAB	lab(30.21, 31.94, -57.81)
CIE-LCH	lch(30.21, 66.04, 298.92°)
OKLab	oklab(41.12% 0.0081 -0.1669)
OKLCH	oklch(41.12% 0.167 272.8)
XYZ	xyz(9.3883, 6.3225, 35.3688)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313AA3 #A39A31

analogous

#3173A3 #313AA3 #6131A3

triadic

#313AA3 #A3313A #3AA331

tetradic

#313AA3 #A33173 #A39A31 #31A361

square

#313AA3 #A33173 #A39A31 #31A361

split-complementary

#313AA3 #A36131 #73A331

monochromatic

#151945 #232974 #313AA3 #4953C8 #787FD6

Accessibility & contrast

On white

9.27

#313AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#313AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AA3

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AA3	#FFFFFF	#000000	##FFFFFF
##313AA3	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA6

Deuteranopia (green-blind)

#0042A1

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313aa3;
/* rgb */ color: rgb(49, 58, 163);
/* oklch */ color: oklch(41.1% 0.167 272.8);

Tailwind

colors: {
  custom: {
    50: '#7970bf',
    500: '#313aa3',
    950: '#000000',
  },
}

SCSS

$custom: #313aa3;
$custom-light: #7970bf;
$custom-dark: #000000;

JSON

{
  "hex": "#313aa3",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 163
  },
  "hsl": {
    "h": 235.263,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41124,
    "c": 0.16708,
    "h": 272.8
  },
  "luminance": 0.06323
}

Semantic roles & 50–950 ramp

primary

#313AA3

secondary

#BFB971

accent

#D24BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313AA3

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

Preview Lab → · Contrast checker → · Palette generator →