#4259CA#4259CA

#4259CA is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.2% C 0.177 H 270.3°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4259CA
RGB	rgb(66, 89, 202)
HSL	hsl(230, 56%, 53%)
HSV	hsv(230, 67%, 79%)
CMYK	cmyk(67.3%, 55.9%, 0%, 20.8%)
CIE-LAB	lab(42.10, 28.35, -61.41)
CIE-LCH	lch(42.10, 67.64, 294.78°)
OKLab	oklab(51.17% 0.0008 -0.1767)
OKLCH	oklch(51.17% 0.177 270.3)
XYZ	xyz(16.4762, 12.5657, 57.4228)
Luminance	0.1257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259CA #CAB342

analogous

#429DCA #4259CA #6F42CA

triadic

#4259CA #CA4259 #59CA42

tetradic

#4259CA #CA429D #CAB342 #42CA6F

square

#4259CA #CA429D #CAB342 #42CA6F

split-complementary

#4259CA #CA6F42 #9DCA42

monochromatic

#202E72 #2D41A2 #4259CA #7283D7 #A2ADE5

Accessibility & contrast

On white

5.98

#4259CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4259CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259CA

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259CA	#FFFFFF	#000000	##FFFFFF
##4259CA	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)

#006ACE

Deuteranopia (green-blind)

#005DC8

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4259ca;
/* rgb */ color: rgb(66, 89, 202);
/* oklch */ color: oklch(51.2% 0.177 270.3);

Tailwind

colors: {
  custom: {
    50: '#8687db',
    500: '#4259ca',
    950: '#000000',
  },
}

SCSS

$custom: #4259ca;
$custom-light: #8687db;
$custom-dark: #000000;

JSON

{
  "hex": "#4259ca",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 202
  },
  "hsl": {
    "h": 229.853,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5117,
    "c": 0.17674,
    "h": 270.3
  },
  "luminance": 0.12567
}

Semantic roles & 50–950 ramp

primary

#4259CA

secondary

#D1C796

accent

#C648DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4259CA

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

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