#313E63#313E63

#313E63 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.0% C 0.066 H 268.4°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#313E63
RGB	rgb(49, 62, 99)
HSL	hsl(224, 34%, 29%)
HSV	hsv(224, 51%, 39%)
CMYK	cmyk(50.5%, 37.4%, 0%, 61.2%)
CIE-LAB	lab(26.73, 6.12, -23.50)
CIE-LCH	lch(26.73, 24.29, 284.59°)
OKLab	oklab(37.05% -0.0019 -0.0662)
OKLCH	oklch(37.05% 0.066 268.4)
XYZ	xyz(5.2407, 4.9988, 12.4907)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E63 #635631

analogous

#315763 #313E63 #3D3163

triadic

#313E63 #63313E #3E6331

tetradic

#313E63 #633157 #635631 #31633D

square

#313E63 #633157 #635631 #31633D

split-complementary

#313E63 #633D31 #576331

monochromatic

#0A0D14 #1D243A #313E63 #45588C #5F74B0

Accessibility & contrast

On white

10.50

#313E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#313E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E63

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E63	#FFFFFF	#000000	##FFFFFF
##313E63	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304265

Deuteranopia (green-blind)

#2B3D62

Tritanopia (blue-blind)

#1D464C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313e63;
/* rgb */ color: rgb(49, 62, 99);
/* oklch */ color: oklch(37.0% 0.066 268.4);

Tailwind

colors: {
  custom: {
    50: '#6c738f',
    500: '#313e63',
    950: '#000000',
  },
}

SCSS

$custom: #313e63;
$custom-light: #6c738f;
$custom-dark: #000000;

JSON

{
  "hex": "#313e63",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 224.4,
    "s": 33.784,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37049,
    "c": 0.06619,
    "h": 268.4
  },
  "luminance": 0.04999
}

Semantic roles & 50–950 ramp

primary

#313E63

secondary

#94865C

accent

#AE5ECA

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#07080C

muted

#7A7B7D

Preview Lab

Preview with #313E63

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

Preview Lab → · Contrast checker → · Palette generator →