#313E8F#313E8F

#313E8F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.134 H 272.1°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#313E8F
RGB	rgb(49, 62, 143)
HSL	hsl(232, 49%, 38%)
HSV	hsv(232, 66%, 56%)
CMYK	cmyk(65.7%, 56.6%, 0%, 43.9%)
CIE-LAB	lab(29.62, 22.01, -46.59)
CIE-LCH	lch(29.62, 51.53, 295.28°)
OKLab	oklab(40.17% 0.0049 -0.1339)
OKLCH	oklch(40.17% 0.134 272.1)
XYZ	xyz(7.9455, 6.0807, 26.7362)
Luminance	0.0608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E8F #8F8231

analogous

#316D8F #313E8F #53318F

triadic

#313E8F #8F313E #3E8F31

tetradic

#313E8F #8F316D #8F8231 #318F53

square

#313E8F #8F316D #8F8231 #318F53

split-complementary

#313E8F #8F5331 #6D8F31

monochromatic

#121634 #212A61 #313E8F #4152BD #6D7BCD

Accessibility & contrast

On white

9.48

#313E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#313E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E8F

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E8F	#FFFFFF	#000000	##FFFFFF
##313E8F	1.00	9.48	2.22	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #313e8f;
/* rgb */ color: rgb(49, 62, 143);
/* oklch */ color: oklch(40.2% 0.134 272.1);

Tailwind

colors: {
  custom: {
    50: '#7473b0',
    500: '#313e8f',
    950: '#000000',
  },
}

SCSS

$custom: #313e8f;
$custom-light: #7473b0;
$custom-dark: #000000;

JSON

{
  "hex": "#313e8f",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 143
  },
  "hsl": {
    "h": 231.702,
    "s": 48.958,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40172,
    "c": 0.13398,
    "h": 272.1
  },
  "luminance": 0.06081
}

Semantic roles & 50–950 ramp

primary

#313E8F

secondary

#B5AA67

accent

#C64FD9

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313E8F

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

Preview Lab → · Contrast checker → · Palette generator →