#3155A6#3155A6

#3155A6 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.8% C 0.137 H 263.9°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#3155A6
RGB	rgb(49, 85, 166)
HSL	hsl(222, 54%, 42%)
HSV	hsv(222, 70%, 65%)
CMYK	cmyk(70.5%, 48.8%, 0%, 34.9%)
CIE-LAB	lab(37.67, 15.23, -47.51)
CIE-LCH	lch(37.67, 49.89, 287.77°)
OKLab	oklab(46.79% -0.0146 -0.1363)
OKLCH	oklch(46.79% 0.137 263.9)
XYZ	xyz(11.3956, 9.9020, 37.3797)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155A6 #A68231

analogous

#3190A6 #3155A6 #4731A6

triadic

#3155A6 #A63155 #55A631

tetradic

#3155A6 #A63190 #A68231 #31A647

square

#3155A6 #A63190 #A68231 #31A647

split-complementary

#3155A6 #A64731 #90A631

monochromatic

#152547 #233D77 #3155A6 #4A72CA #7A97D8

Accessibility & contrast

On white

7.05

#3155A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3155A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3155A6

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155A6	#FFFFFF	#000000	##FFFFFF
##3155A6	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295EA9

Deuteranopia (green-blind)

#0854A4

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3155a6;
/* rgb */ color: rgb(49, 85, 166);
/* oklch */ color: oklch(46.8% 0.137 263.9);

Tailwind

colors: {
  custom: {
    50: '#7784c1',
    500: '#3155a6',
    950: '#000000',
  },
}

SCSS

$custom: #3155a6;
$custom-light: #7784c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3155a6",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 166
  },
  "hsl": {
    "h": 221.538,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.46788,
    "c": 0.13704,
    "h": 263.9
  },
  "luminance": 0.09903
}

Semantic roles & 50–950 ramp

primary

#3155A6

secondary

#C0A873

accent

#B04ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3155A6

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

Preview Lab → · Contrast checker → · Palette generator →