#575BB3#575BB3

#575BB3 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.137 H 278.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#575BB3
RGB	rgb(87, 91, 179)
HSL	hsl(237, 38%, 52%)
HSV	hsv(237, 51%, 70%)
CMYK	cmyk(51.4%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(42.40, 23.22, -47.47)
CIE-LCH	lch(42.40, 52.85, 296.07°)
OKLab	oklab(51.25% 0.0201 -0.1352)
OKLCH	oklch(51.25% 0.137 278.4)
XYZ	xyz(15.8057, 12.7621, 44.2696)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#575BB3 #B3AF57

analogous

#5789B3 #575BB3 #8157B3

triadic

#575BB3 #B3575B #5BB357

tetradic

#575BB3 #B35789 #B3AF57 #57B381

square

#575BB3 #B35789 #B3AF57 #57B381

split-complementary

#575BB3 #B38157 #89B357

monochromatic

#2D2F63 #40438D #575BB3 #8184C6 #ABADD9

Accessibility & contrast

On white

5.91

#575BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#575BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #575BB3

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##575BB3	#FFFFFF	#000000	##FFFFFF
##575BB3	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3268B6

Deuteranopia (green-blind)

#2961B1

Tritanopia (blue-blind)

#316E7E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #575bb3;
/* rgb */ color: rgb(87, 91, 179);
/* oklch */ color: oklch(51.3% 0.137 278.4);

Tailwind

colors: {
  custom: {
    50: '#8d89ca',
    500: '#575bb3',
    950: '#000000',
  },
}

SCSS

$custom: #575bb3;
$custom-light: #8d89ca;
$custom-dark: #000000;

JSON

{
  "hex": "#575bb3",
  "rgb": {
    "r": 87,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 237.391,
    "s": 37.705,
    "l": 52.157
  },
  "oklch": {
    "l": 0.51252,
    "c": 0.13668,
    "h": 278.4
  },
  "luminance": 0.12763
}

Semantic roles & 50–950 ramp

primary

#575BB3

secondary

#C7C59F

accent

#C95ACE

background

#F9F8FC

surface

#F1F0F8

border

#CBCBD1

text

#0D0B13

muted

#7E7C82

Preview Lab

Preview with #575BB3

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

Preview Lab → · Contrast checker → · Palette generator →