#313E97#313E97

#313E97 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.145 H 272.0°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#313E97
RGB	rgb(49, 62, 151)
HSL	hsl(232, 51%, 39%)
HSV	hsv(232, 68%, 59%)
CMYK	cmyk(67.5%, 58.9%, 0%, 40.8%)
CIE-LAB	lab(30.23, 24.95, -50.49)
CIE-LCH	lch(30.23, 56.32, 296.30°)
OKLab	oklab(40.83% 0.0051 -0.1453)
OKLCH	oklch(40.83% 0.145 272)
XYZ	xyz(8.5733, 6.3318, 30.0425)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E97 #978A31

analogous

#317197 #313E97 #573197

triadic

#313E97 #97313E #3E9731

tetradic

#313E97 #973171 #978A31 #319757

square

#313E97 #973171 #978A31 #319757

split-complementary

#313E97 #975731 #719731

monochromatic

#13183B #222B69 #313E97 #4353C2 #717ED1

Accessibility & contrast

On white

9.26

#313E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#313E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E97

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E97	#FFFFFF	#000000	##FFFFFF
##313E97	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004395

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313e97;
/* rgb */ color: rgb(49, 62, 151);
/* oklch */ color: oklch(40.8% 0.145 272.0);

Tailwind

colors: {
  custom: {
    50: '#7673b6',
    500: '#313e97',
    950: '#000000',
  },
}

SCSS

$custom: #313e97;
$custom-light: #7673b6;
$custom-dark: #000000;

JSON

{
  "hex": "#313e97",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 151
  },
  "hsl": {
    "h": 232.353,
    "s": 51,
    "l": 39.216
  },
  "oklch": {
    "l": 0.4083,
    "c": 0.14544,
    "h": 272
  },
  "luminance": 0.06333
}

Semantic roles & 50–950 ramp

primary

#313E97

secondary

#B9AF6B

accent

#C84DDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313E97

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

Preview Lab → · Contrast checker → · Palette generator →