#313598#313598

#313598 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.158 H 274.6°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#313598
RGB	rgb(49, 53, 152)
HSL	hsl(238, 51%, 39%)
HSV	hsv(238, 68%, 60%)
CMYK	cmyk(67.8%, 65.1%, 0%, 40.4%)
CIE-LAB	lab(28.02, 31.23, -54.71)
CIE-LCH	lch(28.02, 62.99, 299.72°)
OKLab	oklab(39.22% 0.0127 -0.1578)
OKLCH	oklch(39.22% 0.158 274.6)
XYZ	xyz(8.2053, 5.4654, 30.3222)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313598 #989431

analogous

#316998 #313598 #613198

triadic

#313598 #983135 #359831

tetradic

#313598 #983169 #989431 #319861

square

#313598 #983169 #989431 #319861

split-complementary

#313598 #986131 #699831

monochromatic

#13153B #22256A #313598 #4449C3 #7276D2

Accessibility & contrast

On white

10.03

#313598 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#313598 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313598

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313598	#FFFFFF	#000000	##FFFFFF
##313598	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479B

Deuteranopia (green-blind)

#003E96

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313598;
/* rgb */ color: rgb(49, 53, 152);
/* oklch */ color: oklch(39.2% 0.158 274.6);

Tailwind

colors: {
  custom: {
    50: '#776cb7',
    500: '#313598',
    950: '#000000',
  },
}

SCSS

$custom: #313598;
$custom-light: #776cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#313598",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 152
  },
  "hsl": {
    "h": 237.67,
    "s": 51.244,
    "l": 39.412
  },
  "oklch": {
    "l": 0.39222,
    "c": 0.15833,
    "h": 274.6
  },
  "luminance": 0.05466
}

Semantic roles & 50–950 ramp

primary

#313598

secondary

#B9B66B

accent

#D54DDB

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #313598

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

Preview Lab → · Contrast checker → · Palette generator →