#285AB1#285AB1

#285AB1 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.3% C 0.149 H 260.6°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#285AB1
RGB	rgb(40, 90, 177)
HSL	hsl(218, 63%, 43%)
HSV	hsv(218, 77%, 69%)
CMYK	cmyk(77.4%, 49.2%, 0%, 30.6%)
CIE-LAB	lab(39.47, 14.92, -51.14)
CIE-LCH	lch(39.47, 53.27, 286.26°)
OKLab	oklab(48.31% -0.0243 -0.147)
OKLCH	oklch(48.31% 0.149 260.6)
XYZ	xyz(12.4642, 10.9363, 43.0405)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB1 #B17F28

analogous

#289FB1 #285AB1 #3A28B1

triadic

#285AB1 #B1285A #5AB128

tetradic

#285AB1 #B1289F #B17F28 #28B13A

square

#285AB1 #B1289F #B17F28 #28B13A

split-complementary

#285AB1 #B13A28 #9FB128

monochromatic

#11274D #1D417F #285AB1 #4277D4 #749BE0

Accessibility & contrast

On white

6.59

#285AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#285AB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB1

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB1	#FFFFFF	#000000	##FFFFFF
##285AB1	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2864B4

Deuteranopia (green-blind)

#0057AF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #285ab1;
/* rgb */ color: rgb(40, 90, 177);
/* oklch */ color: oklch(48.3% 0.149 260.6);

Tailwind

colors: {
  custom: {
    50: '#7688c9',
    500: '#285ab1',
    950: '#000000',
  },
}

SCSS

$custom: #285ab1;
$custom-light: #7688c9;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab1",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 177
  },
  "hsl": {
    "h": 218.102,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48308,
    "c": 0.14897,
    "h": 260.6
  },
  "luminance": 0.10938
}

Semantic roles & 50–950 ramp

primary

#285AB1

secondary

#C7A66E

accent

#AA42E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285AB1

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

Preview Lab → · Contrast checker → · Palette generator →