#3151BA#3151BA

#3151BA is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.5% C 0.170 H 266.8°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3151BA
RGB	rgb(49, 81, 186)
HSL	hsl(226, 58%, 46%)
HSV	hsv(226, 74%, 73%)
CMYK	cmyk(73.7%, 56.5%, 0%, 27.1%)
CIE-LAB	lab(37.99, 25.36, -58.82)
CIE-LCH	lch(37.99, 64.05, 293.33°)
OKLab	oklab(47.48% -0.0093 -0.1696)
OKLCH	oklch(47.48% 0.17 266.8)
XYZ	xyz(13.0689, 10.0816, 47.7020)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151BA #BA9A31

analogous

#3195BA #3151BA #5531BA

triadic

#3151BA #BA3151 #51BA31

tetradic

#3151BA #BA3195 #BA9A31 #31BA55

square

#3151BA #BA3195 #BA9A31 #31BA55

split-complementary

#3151BA #BA5531 #95BA31

monochromatic

#172759 #243C8A #3151BA #5673D2 #869BDF

Accessibility & contrast

On white

6.96

#3151BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3151BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3151BA

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151BA	#FFFFFF	#000000	##FFFFFF
##3151BA	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BE

Deuteranopia (green-blind)

#0053B8

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3151ba;
/* rgb */ color: rgb(49, 81, 186);
/* oklch */ color: oklch(47.5% 0.170 266.8);

Tailwind

colors: {
  custom: {
    50: '#7c81d0',
    500: '#3151ba',
    950: '#000000',
  },
}

SCSS

$custom: #3151ba;
$custom-light: #7c81d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3151ba",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 186
  },
  "hsl": {
    "h": 225.985,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.47484,
    "c": 0.16983,
    "h": 266.8
  },
  "luminance": 0.10083
}

Semantic roles & 50–950 ramp

primary

#3151BA

secondary

#C9B77E

accent

#BD46E2

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3151BA

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

Preview Lab → · Contrast checker → · Palette generator →