#4051AF#4051AF

#4051AF is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.4% C 0.150 H 271.8°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#4051AF
RGB	rgb(64, 81, 175)
HSL	hsl(231, 46%, 47%)
HSV	hsv(231, 63%, 69%)
CMYK	cmyk(63.4%, 53.7%, 0%, 31.4%)
CIE-LAB	lab(37.97, 23.62, -52.33)
CIE-LCH	lch(37.97, 57.42, 294.29°)
OKLab	oklab(47.42% 0.0046 -0.1502)
OKLCH	oklch(47.42% 0.15 271.8)
XYZ	xyz(12.7921, 10.0689, 41.8185)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051AF #AF9E40

analogous

#4089AF #4051AF #6740AF

triadic

#4051AF #AF4051 #51AF40

tetradic

#4051AF #AF4089 #AF9E40 #40AF67

square

#4051AF #AF4089 #AF9E40 #40AF67

split-complementary

#4051AF #AF6740 #89AF40

monochromatic

#1F2855 #303C82 #4051AF #6574C7 #929DD7

Accessibility & contrast

On white

6.97

#4051AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#4051AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051AF

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051AF	#FFFFFF	#000000	##FFFFFF
##4051AF	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135EB2

Deuteranopia (green-blind)

#0055AD

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4051af;
/* rgb */ color: rgb(64, 81, 175);
/* oklch */ color: oklch(47.4% 0.150 271.8);

Tailwind

colors: {
  custom: {
    50: '#8081c7',
    500: '#4051af',
    950: '#000000',
  },
}

SCSS

$custom: #4051af;
$custom-light: #8081c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4051af",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 175
  },
  "hsl": {
    "h": 230.811,
    "s": 46.444,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47423,
    "c": 0.15025,
    "h": 271.8
  },
  "luminance": 0.1007
}

Semantic roles & 50–950 ramp

primary

#4051AF

secondary

#C3BA88

accent

#C252D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4051AF

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

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