#4056CB#4056CB

#4056CB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.6% C 0.182 H 270.4°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#4056CB
RGB	rgb(64, 86, 203)
HSL	hsl(231, 57%, 52%)
HSV	hsv(231, 68%, 80%)
CMYK	cmyk(68.5%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(41.30, 30.32, -63.29)
CIE-LCH	lch(41.30, 70.18, 295.60°)
OKLab	oklab(50.57% 0.0013 -0.1823)
OKLCH	oklch(50.57% 0.182 270.4)
XYZ	xyz(16.2180, 12.0558, 57.9606)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4056CB #CBB540

analogous

#409BCB #4056CB #7040CB

triadic

#4056CB #CB4056 #56CB40

tetradic

#4056CB #CB409B #CBB540 #40CB70

square

#4056CB #CB409B #CBB540 #40CB70

split-complementary

#4056CB #CB7040 #9BCB40

monochromatic

#1F2C72 #2C3FA2 #4056CB #7081D8 #A0ABE5

Accessibility & contrast

On white

6.16

#4056CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4056CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4056CB

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4056CB	#FFFFFF	#000000	##FFFFFF
##4056CB	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4056cb;
/* rgb */ color: rgb(64, 86, 203);
/* oklch */ color: oklch(50.6% 0.182 270.4);

Tailwind

colors: {
  custom: {
    50: '#8585dc',
    500: '#4056cb',
    950: '#000000',
  },
}

SCSS

$custom: #4056cb;
$custom-light: #8585dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4056cb",
  "rgb": {
    "r": 64,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 230.504,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5057,
    "c": 0.18234,
    "h": 270.4
  },
  "luminance": 0.12057
}

Semantic roles & 50–950 ramp

primary

#4056CB

secondary

#D2C895

accent

#C847E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4056CB

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

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