#316CDB#316CDB

#316CDB is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.181 H 261.5°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#316CDB
RGB	rgb(49, 108, 219)
HSL	hsl(219, 70%, 53%)
HSV	hsv(219, 78%, 86%)
CMYK	cmyk(77.6%, 50.7%, 0%, 14.1%)
CIE-LAB	lab(47.61, 20.26, -62.25)
CIE-LCH	lch(47.61, 65.46, 288.03°)
OKLab	oklab(55.52% -0.0266 -0.1792)
OKLCH	oklch(55.52% 0.181 261.5)
XYZ	xyz(19.4108, 16.4903, 69.1640)
Luminance	0.1649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#316CDB #DBA031

analogous

#31C1DB #316CDB #4B31DB

triadic

#316CDB #DB316C #6CDB31

tetradic

#316CDB #DB31C1 #DBA031 #31DB4B

square

#316CDB #DB31C1 #DBA031 #31DB4B

split-complementary

#316CDB #DB4B31 #C1DB31

monochromatic

#16397C #1F51B0 #316CDB #6591E4 #99B6ED

Accessibility & contrast

On white

4.89

#316CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#316CDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #316CDB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##316CDB	#FFFFFF	#000000	##FFFFFF
##316CDB	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2479DF

Deuteranopia (green-blind)

#006AD9

Tritanopia (blue-blind)

#008799

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #316cdb;
/* rgb */ color: rgb(49, 108, 219);
/* oklch */ color: oklch(55.5% 0.181 261.5);

Tailwind

colors: {
  custom: {
    50: '#8295e7',
    500: '#316cdb',
    950: '#000000',
  },
}

SCSS

$custom: #316cdb;
$custom-light: #8295e7;
$custom-dark: #000000;

JSON

{
  "hex": "#316cdb",
  "rgb": {
    "r": 49,
    "g": 108,
    "b": 219
  },
  "hsl": {
    "h": 219.176,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5552,
    "c": 0.18118,
    "h": 261.5
  },
  "luminance": 0.16493
}

Semantic roles & 50–950 ramp

primary

#316CDB

secondary

#D9BF8F

accent

#AF3BED

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #316CDB

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

Preview Lab → · Contrast checker → · Palette generator →