#3151AE#3151AE

#3151AE is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.5% C 0.153 H 266.2°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#3151AE
RGB	rgb(49, 81, 174)
HSL	hsl(225, 56%, 44%)
HSV	hsv(225, 72%, 68%)
CMYK	cmyk(71.8%, 53.4%, 0%, 31.8%)
CIE-LAB	lab(37.10, 20.87, -53.18)
CIE-LCH	lch(37.10, 57.13, 291.43°)
OKLab	oklab(46.53% -0.0102 -0.153)
OKLCH	oklch(46.53% 0.153 266.2)
XYZ	xyz(11.8464, 9.5926, 41.2634)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151AE #AE8E31

analogous

#318FAE #3151AE #4F31AE

triadic

#3151AE #AE3151 #51AE31

tetradic

#3151AE #AE318F #AE8E31 #31AE4F

square

#3151AE #AE318F #AE8E31 #31AE4F

split-complementary

#3151AE #AE4F31 #8FAE31

monochromatic

#16254E #243B7E #3151AE #4F6FCD #7F96DB

Accessibility & contrast

On white

7.19

#3151AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3151AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3151AE

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151AE	#FFFFFF	#000000	##FFFFFF
##3151AE	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5DB1

Deuteranopia (green-blind)

#0052AC

Tritanopia (blue-blind)

#006777

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3151ae;
/* rgb */ color: rgb(49, 81, 174);
/* oklch */ color: oklch(46.5% 0.153 266.2);

Tailwind

colors: {
  custom: {
    50: '#7981c7',
    500: '#3151ae',
    950: '#000000',
  },
}

SCSS

$custom: #3151ae;
$custom-light: #7981c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3151ae",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 174
  },
  "hsl": {
    "h": 224.64,
    "s": 56.054,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46534,
    "c": 0.15333,
    "h": 266.2
  },
  "luminance": 0.09594
}

Semantic roles & 50–950 ramp

primary

#3151AE

secondary

#C4B077

accent

#B948DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3151AE

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

Preview Lab → · Contrast checker → · Palette generator →