#4055CF#4055CF

#4055CF is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.7% C 0.189 H 270.7°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#4055CF
RGB	rgb(64, 85, 207)
HSL	hsl(231, 60%, 53%)
HSV	hsv(231, 69%, 81%)
CMYK	cmyk(69.1%, 58.9%, 0%, 18.8%)
CIE-LAB	lab(41.36, 32.37, -65.51)
CIE-LCH	lch(41.36, 73.07, 296.29°)
OKLab	oklab(50.71% 0.0022 -0.1889)
OKLCH	oklch(50.71% 0.189 270.7)
XYZ	xyz(16.6215, 12.0904, 60.4771)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055CF #CFBA40

analogous

#409CCF #4055CF #7240CF

triadic

#4055CF #CF4055 #55CF40

tetradic

#4055CF #CF409C #CFBA40 #40CF72

square

#4055CF #CF409C #CFBA40 #40CF72

split-complementary

#4055CF #CF7240 #9CCF40

monochromatic

#1E2B77 #2A3DA8 #4055CF #7181DB #A2ACE8

Accessibility & contrast

On white

6.14

#4055CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#4055CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055CF

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055CF	#FFFFFF	#000000	##FFFFFF
##4055CF	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)

#0068D3

Deuteranopia (green-blind)

#005BCD

Tritanopia (blue-blind)

#00738A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4055cf;
/* rgb */ color: rgb(64, 85, 207);
/* oklch */ color: oklch(50.7% 0.189 270.7);

Tailwind

colors: {
  custom: {
    50: '#8684df',
    500: '#4055cf',
    950: '#000000',
  },
}

SCSS

$custom: #4055cf;
$custom-light: #8684df;
$custom-dark: #000000;

JSON

{
  "hex": "#4055cf",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 207
  },
  "hsl": {
    "h": 231.189,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.50706,
    "c": 0.18888,
    "h": 270.7
  },
  "luminance": 0.12092
}

Semantic roles & 50–950 ramp

primary

#4055CF

secondary

#D4CB97

accent

#CC45E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4055CF

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

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