#313D70#313D70

#313D70 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.088 H 271.6°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#313D70
RGB	rgb(49, 61, 112)
HSL	hsl(229, 39%, 32%)
HSV	hsv(229, 56%, 44%)
CMYK	cmyk(56.3%, 45.5%, 0%, 56.1%)
CIE-LAB	lab(27.19, 11.37, -31.11)
CIE-LCH	lch(27.19, 33.12, 290.07°)
OKLab	oklab(37.65% 0.0025 -0.0884)
OKLCH	oklch(37.65% 0.088 271.6)
XYZ	xyz(5.8590, 5.1599, 16.0133)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D70 #706431

analogous

#315D70 #313D70 #453170

triadic

#313D70 #70313D #3D7031

tetradic

#313D70 #70315D #706431 #317045

square

#313D70 #70315D #706431 #317045

split-complementary

#313D70 #704531 #5D7031

monochromatic

#0C0F1B #1E2645 #313D70 #44549B #6172BA

Accessibility & contrast

On white

10.33

#313D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#313D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D70

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D70	#FFFFFF	#000000	##FFFFFF
##313D70	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274372

Deuteranopia (green-blind)

#203E6F

Tritanopia (blue-blind)

#124851

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313d70;
/* rgb */ color: rgb(49, 61, 112);
/* oklch */ color: oklch(37.6% 0.088 271.6);

Tailwind

colors: {
  custom: {
    50: '#6e7299',
    500: '#313d70',
    950: '#000000',
  },
}

SCSS

$custom: #313d70;
$custom-light: #6e7299;
$custom-dark: #000000;

JSON

{
  "hex": "#313d70",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 112
  },
  "hsl": {
    "h": 228.571,
    "s": 39.13,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37646,
    "c": 0.08842,
    "h": 271.6
  },
  "luminance": 0.0516
}

Semantic roles & 50–950 ramp

primary

#313D70

secondary

#A1945C

accent

#B959CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #313D70

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

Preview Lab → · Contrast checker → · Palette generator →