#313378#313378

#313378 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 36.1% C 0.115 H 277.7°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#313378
RGB	rgb(49, 51, 120)
HSL	hsl(238, 42%, 33%)
HSV	hsv(238, 59%, 47%)
CMYK	cmyk(59.2%, 57.5%, 0%, 52.9%)
CIE-LAB	lab(24.88, 21.09, -39.90)
CIE-LCH	lch(24.88, 45.13, 297.87°)
OKLab	oklab(36.08% 0.0154 -0.1143)
OKLCH	oklch(36.08% 0.115 277.7)
XYZ	xyz(5.8395, 4.3763, 18.3026)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313378 #787631

analogous

#315678 #313378 #523178

triadic

#313378 #783133 #337831

tetradic

#313378 #783156 #787631 #317852

square

#313378 #783156 #787631 #317852

split-complementary

#313378 #785231 #567831

monochromatic

#0E0E21 #1F214D #313378 #4345A3 #6466C0

Accessibility & contrast

On white

11.20

#313378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#313378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313378

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313378	#FFFFFF	#000000	##FFFFFF
##313378	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033E7A

Deuteranopia (green-blind)

#003877

Tritanopia (blue-blind)

#084350

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #313378;
/* rgb */ color: rgb(49, 51, 120);
/* oklch */ color: oklch(36.1% 0.115 277.7);

Tailwind

colors: {
  custom: {
    50: '#706a9f',
    500: '#313378',
    950: '#000000',
  },
}

SCSS

$custom: #313378;
$custom-light: #706a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#313378",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 120
  },
  "hsl": {
    "h": 238.31,
    "s": 42.012,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36079,
    "c": 0.11535,
    "h": 277.7
  },
  "luminance": 0.04377
}

Semantic roles & 50–950 ramp

primary

#313378

secondary

#A7A55E

accent

#CE56D2

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060F

muted

#7B7A7E

Preview Lab

Preview with #313378

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

Preview Lab → · Contrast checker → · Palette generator →