#5157BC#5157BC

#5157BC is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.156 H 276.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#5157BC
RGB	rgb(81, 87, 188)
HSL	hsl(237, 44%, 53%)
HSV	hsv(237, 57%, 74%)
CMYK	cmyk(56.9%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(41.52, 27.41, -54.17)
CIE-LCH	lch(41.52, 60.71, 296.84°)
OKLab	oklab(50.67% 0.0183 -0.1551)
OKLCH	oklch(50.67% 0.156 276.7)
XYZ	xyz(15.8757, 12.1954, 49.0846)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5157BC #BCB651

analogous

#518CBC #5157BC #8151BC

triadic

#5157BC #BC5157 #57BC51

tetradic

#5157BC #BC518C #BCB651 #51BC81

square

#5157BC #BC518C #BCB651 #51BC81

split-complementary

#5157BC #BC8151 #8CBC51

monochromatic

#292C6A #3A3F96 #5157BC #7D82CD #A9ACDE

Accessibility & contrast

On white

6.11

#5157BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#5157BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5157BC

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5157BC	#FFFFFF	#000000	##FFFFFF
##5157BC	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1967C0

Deuteranopia (green-blind)

#005EBA

Tritanopia (blue-blind)

#126E81

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5157bc;
/* rgb */ color: rgb(81, 87, 188);
/* oklch */ color: oklch(50.7% 0.156 276.7);

Tailwind

colors: {
  custom: {
    50: '#8b86d1',
    500: '#5157bc',
    950: '#000000',
  },
}

SCSS

$custom: #5157bc;
$custom-light: #8b86d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5157bc",
  "rgb": {
    "r": 81,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 236.636,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.50668,
    "c": 0.15616,
    "h": 276.7
  },
  "luminance": 0.12197
}

Semantic roles & 50–950 ramp

primary

#5157BC

secondary

#CCC99D

accent

#CD54D4

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5157BC

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

Preview Lab → · Contrast checker → · Palette generator →