#4054CB#4054CB

#4054CB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.2% C 0.185 H 270.9°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#4054CB
RGB	rgb(64, 84, 203)
HSL	hsl(231, 57%, 52%)
HSV	hsv(231, 68%, 80%)
CMYK	cmyk(68.5%, 58.6%, 0%, 20.4%)
CIE-LAB	lab(40.80, 31.59, -64.11)
CIE-LCH	lch(40.80, 71.47, 296.23°)
OKLab	oklab(50.2% 0.0029 -0.1848)
OKLCH	oklch(50.2% 0.185 270.9)
XYZ	xyz(16.0605, 11.7409, 57.9082)
Luminance	0.1174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4054CB #CBB740

analogous

#409ACB #4054CB #7240CB

triadic

#4054CB #CB4054 #54CB40

tetradic

#4054CB #CB409A #CBB740 #40CB72

square

#4054CB #CB409A #CBB740 #40CB72

split-complementary

#4054CB #CB7240 #9ACB40

monochromatic

#1F2B72 #2C3DA2 #4054CB #707FD8 #A0AAE5

Accessibility & contrast

On white

6.27

#4054CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#4054CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4054CB

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4054CB	#FFFFFF	#000000	##FFFFFF
##4054CB	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#005AC9

Tritanopia (blue-blind)

#007187

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4054cb;
/* rgb */ color: rgb(64, 84, 203);
/* oklch */ color: oklch(50.2% 0.185 270.9);

Tailwind

colors: {
  custom: {
    50: '#8684dc',
    500: '#4054cb',
    950: '#000000',
  },
}

SCSS

$custom: #4054cb;
$custom-light: #8684dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4054cb",
  "rgb": {
    "r": 64,
    "g": 84,
    "b": 203
  },
  "hsl": {
    "h": 231.367,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.50195,
    "c": 0.18479,
    "h": 270.9
  },
  "luminance": 0.11742
}

Semantic roles & 50–950 ramp

primary

#4054CB

secondary

#D2C995

accent

#CA47E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #4054CB

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

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