#3151A6#3151A6

#3151A6 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.142 H 265.6°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#3151A6
RGB	rgb(49, 81, 166)
HSL	hsl(224, 54%, 42%)
HSV	hsv(224, 70%, 65%)
CMYK	cmyk(70.5%, 51.2%, 0%, 34.9%)
CIE-LAB	lab(36.54, 17.87, -49.33)
CIE-LCH	lch(36.54, 52.47, 289.91°)
OKLab	oklab(45.93% -0.011 -0.1417)
OKLCH	oklch(45.93% 0.142 265.6)
XYZ	xyz(11.0896, 9.2899, 37.2777)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151A6 #A68631

analogous

#318CA6 #3151A6 #4C31A6

triadic

#3151A6 #A63151 #51A631

tetradic

#3151A6 #A6318C #A68631 #31A64C

square

#3151A6 #A6318C #A68631 #31A64C

split-complementary

#3151A6 #A64C31 #8CA631

monochromatic

#152347 #233A77 #3151A6 #4A6DCA #7A93D8

Accessibility & contrast

On white

7.35

#3151A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#3151A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3151A6

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151A6	#FFFFFF	#000000	##FFFFFF
##3151A6	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5CA9

Deuteranopia (green-blind)

#0051A4

Tritanopia (blue-blind)

#006573

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3151a6;
/* rgb */ color: rgb(49, 81, 166);
/* oklch */ color: oklch(45.9% 0.142 265.6);

Tailwind

colors: {
  custom: {
    50: '#7881c1',
    500: '#3151a6',
    950: '#000000',
  },
}

SCSS

$custom: #3151a6;
$custom-light: #7881c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3151a6",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 166
  },
  "hsl": {
    "h": 223.59,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.45926,
    "c": 0.1421,
    "h": 265.6
  },
  "luminance": 0.09291
}

Semantic roles & 50–950 ramp

primary

#3151A6

secondary

#C0AB73

accent

#B54ADE

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3151A6

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

Preview Lab → · Contrast checker → · Palette generator →