#285AB9#285AB9

#285AB9 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.160 H 261.7°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#285AB9
RGB	rgb(40, 90, 185)
HSL	hsl(219, 64%, 44%)
HSV	hsv(219, 78%, 73%)
CMYK	cmyk(78.4%, 51.4%, 0%, 27.5%)
CIE-LAB	lab(40.02, 18.01, -54.95)
CIE-LCH	lch(40.02, 57.82, 288.14°)
OKLab	oklab(48.9% -0.0232 -0.1582)
OKLCH	oklch(48.9% 0.16 261.7)
XYZ	xyz(13.2850, 11.2647, 47.3637)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB9 #B98728

analogous

#28A3B9 #285AB9 #3F28B9

triadic

#285AB9 #B9285A #5AB928

tetradic

#285AB9 #B928A3 #B98728 #28B93F

square

#285AB9 #B928A3 #B98728 #28B93F

split-complementary

#285AB9 #B93F28 #A3B928

monochromatic

#122954 #1D4287 #285AB9 #4779D7 #799DE2

Accessibility & contrast

On white

6.46

#285AB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#285AB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB9

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB9	#FFFFFF	#000000	##FFFFFF
##285AB9	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)

#1C65BC

Deuteranopia (green-blind)

#0058B7

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285ab9;
/* rgb */ color: rgb(40, 90, 185);
/* oklch */ color: oklch(48.9% 0.160 261.7);

Tailwind

colors: {
  custom: {
    50: '#7888cf',
    500: '#285ab9',
    950: '#000000',
  },
}

SCSS

$custom: #285ab9;
$custom-light: #7888cf;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab9",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 185
  },
  "hsl": {
    "h": 219.31,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48904,
    "c": 0.15988,
    "h": 261.7
  },
  "luminance": 0.11266
}

Semantic roles & 50–950 ramp

primary

#285AB9

secondary

#CAAC73

accent

#AE40E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #285AB9

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

Preview Lab → · Contrast checker → · Palette generator →