#4255AA#4255AA

#4255AA is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.0% C 0.137 H 270.9°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#4255AA
RGB	rgb(66, 85, 170)
HSL	hsl(229, 44%, 46%)
HSV	hsv(229, 61%, 67%)
CMYK	cmyk(61.2%, 50%, 0%, 33.3%)
CIE-LAB	lab(38.82, 19.64, -47.98)
CIE-LCH	lch(38.82, 51.85, 292.26°)
OKLab	oklab(47.99% 0.0022 -0.1373)
OKLCH	oklch(47.99% 0.137 270.9)
XYZ	xyz(12.7485, 10.5565, 39.3882)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255AA #AA9742

analogous

#4289AA #4255AA #6342AA

triadic

#4255AA #AA4255 #55AA42

tetradic

#4255AA #AA4289 #AA9742 #42AA63

square

#4255AA #AA4289 #AA9742 #42AA63

split-complementary

#4255AA #AA6342 #89AA42

monochromatic

#202952 #313F7E #4255AA #6677C3 #929ED5

Accessibility & contrast

On white

6.75

#4255AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#4255AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255AA

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255AA	#FFFFFF	#000000	##FFFFFF
##4255AA	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2860AD

Deuteranopia (green-blind)

#1357A8

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4255aa;
/* rgb */ color: rgb(66, 85, 170);
/* oklch */ color: oklch(48.0% 0.137 270.9);

Tailwind

colors: {
  custom: {
    50: '#8084c4',
    500: '#4255aa',
    950: '#000000',
  },
}

SCSS

$custom: #4255aa;
$custom-light: #8084c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4255aa",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 170
  },
  "hsl": {
    "h": 229.038,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.47994,
    "c": 0.1373,
    "h": 270.9
  },
  "luminance": 0.10558
}

Semantic roles & 50–950 ramp

primary

#4255AA

secondary

#C0B688

accent

#BC54D4

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4255AA

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

Preview Lab → · Contrast checker → · Palette generator →