#313F76#313F76

#313F76 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.5% C 0.095 H 270.7°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#313F76
RGB	rgb(49, 63, 118)
HSL	hsl(228, 41%, 33%)
HSV	hsv(228, 58%, 46%)
CMYK	cmyk(58.5%, 46.6%, 0%, 53.7%)
CIE-LAB	lab(28.16, 12.16, -33.37)
CIE-LCH	lch(28.16, 35.51, 290.03°)
OKLab	oklab(38.51% 0.0011 -0.095)
OKLCH	oklch(38.51% 0.095 270.7)
XYZ	xyz(6.3131, 5.5155, 17.8680)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F76 #766831

analogous

#316176 #313F76 #453176

triadic

#313F76 #76313F #3F7631

tetradic

#313F76 #763161 #766831 #317645

square

#313F76 #763161 #766831 #317645

split-complementary

#313F76 #764531 #617631

monochromatic

#0D1120 #1F284B #313F76 #4356A1 #6376BE

Accessibility & contrast

On white

9.98

#313F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F76

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F76	#FFFFFF	#000000	##FFFFFF
##313F76	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274678

Deuteranopia (green-blind)

#1E4075

Tritanopia (blue-blind)

#084B54

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313f76;
/* rgb */ color: rgb(49, 63, 118);
/* oklch */ color: oklch(38.5% 0.095 270.7);

Tailwind

colors: {
  custom: {
    50: '#6f739e',
    500: '#313f76',
    950: '#000000',
  },
}

SCSS

$custom: #313f76;
$custom-light: #6f739e;
$custom-dark: #000000;

JSON

{
  "hex": "#313f76",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 118
  },
  "hsl": {
    "h": 227.826,
    "s": 41.317,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3851,
    "c": 0.09499,
    "h": 270.7
  },
  "luminance": 0.05516
}

Semantic roles & 50–950 ramp

primary

#313F76

secondary

#A6975D

accent

#B857D1

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08080E

muted

#7B7B7E

Preview Lab

Preview with #313F76

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

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