#4052CB#4052CB

#4052CB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.8% C 0.187 H 271.4°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#4052CB
RGB	rgb(64, 82, 203)
HSL	hsl(232, 57%, 52%)
HSV	hsv(232, 68%, 80%)
CMYK	cmyk(68.5%, 59.6%, 0%, 20.4%)
CIE-LAB	lab(40.30, 32.86, -64.92)
CIE-LCH	lch(40.30, 72.76, 296.85°)
OKLab	oklab(49.83% 0.0045 -0.1872)
OKLCH	oklch(49.83% 0.187 271.4)
XYZ	xyz(15.9075, 11.4348, 57.8572)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4052CB #CBB940

analogous

#4098CB #4052CB #7340CB

triadic

#4052CB #CB4052 #52CB40

tetradic

#4052CB #CB4098 #CBB940 #40CB73

square

#4052CB #CB4098 #CBB940 #40CB73

split-complementary

#4052CB #CB7340 #98CB40

monochromatic

#1F2A72 #2C3BA2 #4052CB #707ED8 #A0A9E5

Accessibility & contrast

On white

6.39

#4052CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#4052CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4052CB

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4052CB	#FFFFFF	#000000	##FFFFFF
##4052CB	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#0059C9

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4052cb;
/* rgb */ color: rgb(64, 82, 203);
/* oklch */ color: oklch(49.8% 0.187 271.4);

Tailwind

colors: {
  custom: {
    50: '#8682dc',
    500: '#4052cb',
    950: '#000000',
  },
}

SCSS

$custom: #4052cb;
$custom-light: #8682dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4052cb",
  "rgb": {
    "r": 64,
    "g": 82,
    "b": 203
  },
  "hsl": {
    "h": 232.23,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49825,
    "c": 0.18722,
    "h": 271.4
  },
  "luminance": 0.11436
}

Semantic roles & 50–950 ramp

primary

#4052CB

secondary

#D2CA95

accent

#CD47E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #4052CB

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

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