#4155CB#4155CB

#4155CB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.4% C 0.183 H 271.0°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#4155CB
RGB	rgb(65, 85, 203)
HSL	hsl(231, 57%, 53%)
HSV	hsv(231, 68%, 80%)
CMYK	cmyk(68%, 58.1%, 0%, 20.4%)
CIE-LAB	lab(41.11, 31.10, -63.61)
CIE-LCH	lch(41.11, 70.80, 296.05°)
OKLab	oklab(50.44% 0.0032 -0.1833)
OKLCH	oklch(50.44% 0.183 271)
XYZ	xyz(16.2043, 11.9311, 57.9373)
Luminance	0.1193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4155CB #CBB741

analogous

#419ACB #4155CB #7241CB

triadic

#4155CB #CB4155 #55CB41

tetradic

#4155CB #CB419A #CBB741 #41CB72

square

#4155CB #CB419A #CBB741 #41CB72

split-complementary

#4155CB #CB7241 #9ACB41

monochromatic

#1F2B72 #2C3EA2 #4155CB #7180D8 #A1ABE5

Accessibility & contrast

On white

6.20

#4155CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#4155CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4155CB

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4155CB	#FFFFFF	#000000	##FFFFFF
##4155CB	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4155cb;
/* rgb */ color: rgb(65, 85, 203);
/* oklch */ color: oklch(50.4% 0.183 271.0);

Tailwind

colors: {
  custom: {
    50: '#8684dc',
    500: '#4155cb',
    950: '#000000',
  },
}

SCSS

$custom: #4155cb;
$custom-light: #8684dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4155cb",
  "rgb": {
    "r": 65,
    "g": 85,
    "b": 203
  },
  "hsl": {
    "h": 231.304,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50436,
    "c": 0.1833,
    "h": 271
  },
  "luminance": 0.11933
}

Semantic roles & 50–950 ramp

primary

#4155CB

secondary

#D2C996

accent

#CA48E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4155CB

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

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