#4051CE#4051CE

#4051CE is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.9% C 0.192 H 271.6°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#4051CE
RGB	rgb(64, 81, 206)
HSL	hsl(233, 59%, 53%)
HSV	hsv(233, 69%, 81%)
CMYK	cmyk(68.9%, 60.7%, 0%, 19.2%)
CIE-LAB	lab(40.29, 34.54, -66.67)
CIE-LCH	lch(40.29, 75.08, 297.39°)
OKLab	oklab(49.89% 0.0052 -0.1923)
OKLCH	oklch(49.89% 0.192 271.6)
XYZ	xyz(16.1936, 11.4295, 59.7333)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051CE #CEBD40

analogous

#4098CE #4051CE #7640CE

triadic

#4051CE #CE4051 #51CE40

tetradic

#4051CE #CE4098 #CEBD40 #40CE76

square

#4051CE #CE4098 #CEBD40 #40CE76

split-complementary

#4051CE #CE7640 #98CE40

monochromatic

#1E2975 #2B39A6 #4051CE #717DDA #A1AAE7

Accessibility & contrast

On white

6.39

#4051CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#4051CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051CE

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051CE	#FFFFFF	#000000	##FFFFFF
##4051CE	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)

#0066D2

Deuteranopia (green-blind)

#0059CC

Tritanopia (blue-blind)

#007188

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4051ce;
/* rgb */ color: rgb(64, 81, 206);
/* oklch */ color: oklch(49.9% 0.192 271.6);

Tailwind

colors: {
  custom: {
    50: '#8681de',
    500: '#4051ce',
    950: '#000000',
  },
}

SCSS

$custom: #4051ce;
$custom-light: #8681de;
$custom-dark: #000000;

JSON

{
  "hex": "#4051ce",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 206
  },
  "hsl": {
    "h": 232.817,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.49892,
    "c": 0.19238,
    "h": 271.6
  },
  "luminance": 0.11431
}

Semantic roles & 50–950 ramp

primary

#4051CE

secondary

#D4CC96

accent

#D045E2

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #4051CE

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

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