#4259D4#4259D4

#4259D4 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.0% C 0.190 H 270.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#4259D4
RGB	rgb(66, 89, 212)
HSL	hsl(231, 63%, 55%)
HSV	hsv(231, 69%, 83%)
CMYK	cmyk(68.9%, 58%, 0%, 16.9%)
CIE-LAB	lab(42.85, 31.88, -65.96)
CIE-LCH	lch(42.85, 73.25, 295.79°)
OKLab	oklab(51.96% 0.0011 -0.1901)
OKLCH	oklch(51.96% 0.19 270.3)
XYZ	xyz(17.6988, 13.0547, 63.8617)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259D4 #D4BD42

analogous

#42A2D4 #4259D4 #7442D4

triadic

#4259D4 #D44259 #59D442

tetradic

#4259D4 #D442A2 #D4BD42 #42D474

square

#4259D4 #D442A2 #D4BD42 #42D474

split-complementary

#4259D4 #D47442 #A2D442

monochromatic

#1D2C7F #283EB1 #4259D4 #7485DF #A6B1EB

Accessibility & contrast

On white

5.82

#4259D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#4259D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259D4

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259D4	#FFFFFF	#000000	##FFFFFF
##4259D4	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD8

Deuteranopia (green-blind)

#005FD2

Tritanopia (blue-blind)

#00778E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4259d4;
/* rgb */ color: rgb(66, 89, 212);
/* oklch */ color: oklch(52.0% 0.190 270.3);

Tailwind

colors: {
  custom: {
    50: '#8887e2',
    500: '#4259d4',
    950: '#000000',
  },
}

SCSS

$custom: #4259d4;
$custom-light: #8887e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4259d4",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 212
  },
  "hsl": {
    "h": 230.548,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5196,
    "c": 0.19009,
    "h": 270.3
  },
  "luminance": 0.13056
}

Semantic roles & 50–950 ramp

primary

#4259D4

secondary

#D8CE9A

accent

#CC42E6

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #4259D4

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

Preview Lab → · Contrast checker → · Palette generator →