#4255AE#4255AE

#4255AE is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.3% C 0.143 H 271.1°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#4255AE
RGB	rgb(66, 85, 174)
HSL	hsl(229, 45%, 47%)
HSV	hsv(229, 62%, 68%)
CMYK	cmyk(62.1%, 51.1%, 0%, 31.8%)
CIE-LAB	lab(39.09, 21.04, -49.93)
CIE-LCH	lch(39.09, 54.18, 292.85°)
OKLab	oklab(48.28% 0.0027 -0.143)
OKLCH	oklch(48.28% 0.143 271.1)
XYZ	xyz(13.1327, 10.7101, 41.4114)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255AE #AE9B42

analogous

#428BAE #4255AE #6542AE

triadic

#4255AE #AE4255 #55AE42

tetradic

#4255AE #AE428B #AE9B42 #42AE65

square

#4255AE #AE428B #AE9B42 #42AE65

split-complementary

#4255AE #AE6542 #8BAE42

monochromatic

#202A55 #313F82 #4255AE #6878C6 #94A0D6

Accessibility & contrast

On white

6.68

#4255AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4255AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255AE

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255AE	#FFFFFF	#000000	##FFFFFF
##4255AE	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2361B1

Deuteranopia (green-blind)

#0657AC

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4255ae;
/* rgb */ color: rgb(66, 85, 174);
/* oklch */ color: oklch(48.3% 0.143 271.1);

Tailwind

colors: {
  custom: {
    50: '#8184c7',
    500: '#4255ae',
    950: '#000000',
  },
}

SCSS

$custom: #4255ae;
$custom-light: #8184c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4255ae",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 174
  },
  "hsl": {
    "h": 229.444,
    "s": 45,
    "l": 47.059
  },
  "oklch": {
    "l": 0.4828,
    "c": 0.14301,
    "h": 271.1
  },
  "luminance": 0.10711
}

Semantic roles & 50–950 ramp

primary

#4255AE

secondary

#C2B88A

accent

#BE53D5

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4255AE

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

Preview Lab → · Contrast checker → · Palette generator →