#4259CD#4259CD

#4259CD is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.4% C 0.181 H 270.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#4259CD
RGB	rgb(66, 89, 205)
HSL	hsl(230, 58%, 53%)
HSV	hsv(230, 68%, 80%)
CMYK	cmyk(67.8%, 56.6%, 0%, 19.6%)
CIE-LAB	lab(42.32, 29.41, -62.78)
CIE-LCH	lch(42.32, 69.33, 295.10°)
OKLab	oklab(51.41% 0.0009 -0.1808)
OKLCH	oklch(51.41% 0.181 270.3)
XYZ	xyz(16.8348, 12.7092, 59.3117)
Luminance	0.1271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259CD #CDB642

analogous

#429ECD #4259CD #7042CD

triadic

#4259CD #CD4259 #59CD42

tetradic

#4259CD #CD429E #CDB642 #42CD70

square

#4259CD #CD429E #CDB642 #42CD70

split-complementary

#4259CD #CD7042 #9ECD42

monochromatic

#1F2D76 #2C40A6 #4259CD #7284DA #A3AEE7

Accessibility & contrast

On white

5.93

#4259CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#4259CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259CD

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259CD	#FFFFFF	#000000	##FFFFFF
##4259CD	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005ECB

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4259cd;
/* rgb */ color: rgb(66, 89, 205);
/* oklch */ color: oklch(51.4% 0.181 270.3);

Tailwind

colors: {
  custom: {
    50: '#8687dd',
    500: '#4259cd',
    950: '#000000',
  },
}

SCSS

$custom: #4259cd;
$custom-light: #8687dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4259cd",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 205
  },
  "hsl": {
    "h": 230.072,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51405,
    "c": 0.18077,
    "h": 270.3
  },
  "luminance": 0.12711
}

Semantic roles & 50–950 ramp

primary

#4259CD

secondary

#D3C997

accent

#C846E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4259CD

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

Preview Lab → · Contrast checker → · Palette generator →