#5757BF#5757BF

#5757BF is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.159 H 279.2°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#5757BF
RGB	rgb(87, 87, 191)
HSL	hsl(240, 45%, 55%)
HSV	hsv(240, 54%, 75%)
CMYK	cmyk(54.5%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(42.16, 29.58, -54.88)
CIE-LCH	lch(42.16, 62.34, 298.33°)
OKLab	oklab(51.32% 0.0255 -0.157)
OKLCH	oklch(51.32% 0.159 279.2)
XYZ	xyz(16.7397, 12.6032, 50.8307)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5757BF #BFBF57

analogous

#578BBF #5757BF #8B57BF

triadic

#5757BF #BF5757 #57BF57

tetradic

#5757BF #BF578B #BFBF57 #57BF8B

square

#5757BF #BF578B #BFBF57 #57BF8B

split-complementary

#5757BF #BF8B57 #8BBF57

monochromatic

#2B2B71 #3C3C9D #5757BF #8383D0 #B0B0E1

Accessibility & contrast

On white

5.96

#5757BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#5757BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5757BF

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5757BF	#FFFFFF	#000000	##FFFFFF
##5757BF	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1668C3

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#266F82

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5757bf;
/* rgb */ color: rgb(87, 87, 191);
/* oklch */ color: oklch(51.3% 0.159 279.2);

Tailwind

colors: {
  custom: {
    50: '#8f86d3',
    500: '#5757bf',
    950: '#000000',
  },
}

SCSS

$custom: #5757bf;
$custom-light: #8f86d3;
$custom-dark: #000000;

JSON

{
  "hex": "#5757bf",
  "rgb": {
    "r": 87,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 240,
    "s": 44.828,
    "l": 54.51
  },
  "oklch": {
    "l": 0.51318,
    "c": 0.15905,
    "h": 279.2
  },
  "luminance": 0.12604
}

Semantic roles & 50–950 ramp

primary

#5757BF

secondary

#CFCFA3

accent

#D553D5

background

#F9F8FD

surface

#F1EFFA

border

#CBCAD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #5757BF

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

Preview Lab → · Contrast checker → · Palette generator →