#4057D2#4057D2

#4057D2 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.190 H 270.2°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4057D2
RGB	rgb(64, 87, 210)
HSL	hsl(231, 62%, 54%)
HSV	hsv(231, 70%, 82%)
CMYK	cmyk(69.5%, 58.6%, 0%, 17.6%)
CIE-LAB	lab(42.09, 32.16, -66.04)
CIE-LCH	lch(42.09, 73.46, 295.97°)
OKLab	oklab(51.32% 0.0007 -0.1904)
OKLCH	oklch(51.32% 0.19 270.2)
XYZ	xyz(17.1514, 12.5578, 62.4803)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4057D2 #D2BB40

analogous

#40A0D2 #4057D2 #7240D2

triadic

#4057D2 #D24057 #57D240

tetradic

#4057D2 #D240A0 #D2BB40 #40D272

square

#4057D2 #D240A0 #D2BB40 #40D272

split-complementary

#4057D2 #D27240 #A0D240

monochromatic

#1D2C7B #293DAC #4057D2 #7283DE #A3AEE9

Accessibility & contrast

On white

5.98

#4057D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4057D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4057D2

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4057D2	#FFFFFF	#000000	##FFFFFF
##4057D2	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD6

Deuteranopia (green-blind)

#005DD0

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4057d2;
/* rgb */ color: rgb(64, 87, 210);
/* oklch */ color: oklch(51.3% 0.190 270.2);

Tailwind

colors: {
  custom: {
    50: '#8786e1',
    500: '#4057d2',
    950: '#000000',
  },
}

SCSS

$custom: #4057d2;
$custom-light: #8786e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4057d2",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 210
  },
  "hsl": {
    "h": 230.548,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.51321,
    "c": 0.19042,
    "h": 270.2
  },
  "luminance": 0.1256
}

Semantic roles & 50–950 ramp

primary

#4057D2

secondary

#D6CC98

accent

#CB43E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4057D2

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

Preview Lab → · Contrast checker → · Palette generator →