#313E70#313E70

#313E70 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.087 H 270.8°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#313E70
RGB	rgb(49, 62, 112)
HSL	hsl(228, 39%, 32%)
HSV	hsv(228, 56%, 44%)
CMYK	cmyk(56.3%, 44.6%, 0%, 56.1%)
CIE-LAB	lab(27.48, 10.69, -30.64)
CIE-LCH	lch(27.48, 32.45, 289.23°)
OKLab	oklab(37.88% 0.0012 -0.087)
OKLCH	oklch(37.88% 0.087 270.8)
XYZ	xyz(5.9129, 5.2677, 16.0313)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E70 #706331

analogous

#315E70 #313E70 #443170

triadic

#313E70 #70313E #3E7031

tetradic

#313E70 #70315E #706331 #317044

square

#313E70 #70315E #706331 #317044

split-complementary

#313E70 #704431 #5E7031

monochromatic

#0C0F1B #1E2645 #313E70 #44569B #6174BA

Accessibility & contrast

On white

10.23

#313E70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#313E70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E70

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E70	#FFFFFF	#000000	##FFFFFF
##313E70	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294472

Deuteranopia (green-blind)

#223E6F

Tritanopia (blue-blind)

#124951

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313e70;
/* rgb */ color: rgb(49, 62, 112);
/* oklch */ color: oklch(37.9% 0.087 270.8);

Tailwind

colors: {
  custom: {
    50: '#6e7399',
    500: '#313e70',
    950: '#000000',
  },
}

SCSS

$custom: #313e70;
$custom-light: #6e7399;
$custom-dark: #000000;

JSON

{
  "hex": "#313e70",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 112
  },
  "hsl": {
    "h": 227.619,
    "s": 39.13,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37875,
    "c": 0.087,
    "h": 270.8
  },
  "luminance": 0.05268
}

Semantic roles & 50–950 ramp

primary

#313E70

secondary

#A1935C

accent

#B759CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #313E70

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

Preview Lab → · Contrast checker → · Palette generator →