#3C57CB#3C57CB

#3C57CB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.6% C 0.182 H 269.0°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#3C57CB
RGB	rgb(60, 87, 203)
HSL	hsl(229, 58%, 52%)
HSV	hsv(229, 70%, 80%)
CMYK	cmyk(70.4%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(41.35, 29.13, -63.22)
CIE-LCH	lch(41.35, 69.61, 294.74°)
OKLab	oklab(50.55% -0.0033 -0.1822)
OKLCH	oklch(50.55% 0.182 269)
XYZ	xyz(16.0475, 12.0872, 57.9757)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C57CB #CBB03C

analogous

#3C9FCB #3C57CB #693CCB

triadic

#3C57CB #CB3C57 #57CB3C

tetradic

#3C57CB #CB3C9F #CBB03C #3CCB69

square

#3C57CB #CB3C9F #CBB03C #3CCB69

split-complementary

#3C57CB #CB693C #9FCB3C

monochromatic

#1E2D6F #2A419F #3C57CB #6C81D8 #9DAAE5

Accessibility & contrast

On white

6.14

#3C57CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3C57CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C57CB

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C57CB	#FFFFFF	#000000	##FFFFFF
##3C57CB	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3c57cb;
/* rgb */ color: rgb(60, 87, 203);
/* oklch */ color: oklch(50.6% 0.182 269.0);

Tailwind

colors: {
  custom: {
    50: '#8486dc',
    500: '#3c57cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c57cb;
$custom-light: #8486dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3c57cb",
  "rgb": {
    "r": 60,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 228.671,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50551,
    "c": 0.18223,
    "h": 269
  },
  "luminance": 0.12089
}

Semantic roles & 50–950 ramp

primary

#3C57CB

secondary

#D1C592

accent

#C447E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3C57CB

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

Preview Lab → · Contrast checker → · Palette generator →