#4259AB#4259AB

#4259AB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.9% C 0.133 H 269.2°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#4259AB
RGB	rgb(66, 89, 171)
HSL	hsl(227, 44%, 46%)
HSV	hsv(227, 61%, 67%)
CMYK	cmyk(61.4%, 48%, 0%, 32.9%)
CIE-LAB	lab(39.99, 17.40, -46.71)
CIE-LCH	lch(39.99, 49.84, 290.43°)
OKLab	oklab(48.9% -0.0018 -0.1335)
OKLCH	oklch(48.9% 0.133 269.2)
XYZ	xyz(13.1674, 11.2422, 39.9962)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259AB #AB9442

analogous

#428EAB #4259AB #6042AB

triadic

#4259AB #AB4259 #59AB42

tetradic

#4259AB #AB428E #AB9442 #42AB60

square

#4259AB #AB428E #AB9442 #42AB60

split-complementary

#4259AB #AB6042 #8EAB42

monochromatic

#202B53 #31427F #4259AB #667BC4 #92A1D5

Accessibility & contrast

On white

6.46

#4259AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#4259AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259AB

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259AB	#FFFFFF	#000000	##FFFFFF
##4259AB	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3063AE

Deuteranopia (green-blind)

#1E5AA9

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4259ab;
/* rgb */ color: rgb(66, 89, 171);
/* oklch */ color: oklch(48.9% 0.133 269.2);

Tailwind

colors: {
  custom: {
    50: '#8087c4',
    500: '#4259ab',
    950: '#000000',
  },
}

SCSS

$custom: #4259ab;
$custom-light: #8087c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4259ab",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 171
  },
  "hsl": {
    "h": 226.857,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48898,
    "c": 0.13349,
    "h": 269.2
  },
  "luminance": 0.11243
}

Semantic roles & 50–950 ramp

primary

#4259AB

secondary

#C0B488

accent

#B854D4

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4259AB

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

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