#4056D9#4056D9

#4056D9 is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 51.7% C 0.201 H 270.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#4056D9
RGB	rgb(64, 86, 217)
HSL	hsl(231, 67%, 55%)
HSV	hsv(231, 71%, 85%)
CMYK	cmyk(70.5%, 60.4%, 0%, 14.9%)
CIE-LAB	lab(42.39, 35.25, -69.56)
CIE-LCH	lch(42.39, 77.99, 296.87°)
OKLab	oklab(51.72% 0.0014 -0.2008)
OKLCH	oklch(51.72% 0.201 270.4)
XYZ	xyz(17.9623, 12.7535, 67.1472)
Luminance	0.1275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4056D9 #D9C340

analogous

#40A2D9 #4056D9 #7740D9

triadic

#4056D9 #D94056 #56D940

tetradic

#4056D9 #D940A2 #D9C340 #40D977

square

#4056D9 #D940A2 #D9C340 #40D977

split-complementary

#4056D9 #D97740 #A2D940

monochromatic

#1A2A84 #243AB7 #4056D9 #7383E3 #A6B0ED

Accessibility & contrast

On white

5.91

#4056D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4056D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4056D9

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4056D9	#FFFFFF	#000000	##FFFFFF
##4056D9	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BDD

Deuteranopia (green-blind)

#005DD6

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4056d9;
/* rgb */ color: rgb(64, 86, 217);
/* oklch */ color: oklch(51.7% 0.201 270.4);

Tailwind

colors: {
  custom: {
    50: '#8885e6',
    500: '#4056d9',
    950: '#000000',
  },
}

SCSS

$custom: #4056d9;
$custom-light: #8885e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4056d9",
  "rgb": {
    "r": 64,
    "g": 86,
    "b": 217
  },
  "hsl": {
    "h": 231.373,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51715,
    "c": 0.20077,
    "h": 270.4
  },
  "luminance": 0.12755
}

Semantic roles & 50–950 ramp

primary

#4056D9

secondary

#DAD19A

accent

#D13EEA

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4056D9

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

Preview Lab → · Contrast checker → · Palette generator →