#285AB7#285AB7

#285AB7 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.8% C 0.157 H 261.4°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#285AB7
RGB	rgb(40, 90, 183)
HSL	hsl(219, 64%, 44%)
HSV	hsv(219, 78%, 72%)
CMYK	cmyk(78.1%, 50.8%, 0%, 28.2%)
CIE-LAB	lab(39.88, 17.24, -54.00)
CIE-LCH	lch(39.88, 56.69, 287.70°)
OKLab	oklab(48.75% -0.0234 -0.1554)
OKLCH	oklch(48.75% 0.157 261.4)
XYZ	xyz(13.0754, 11.1808, 46.2596)
Luminance	0.1118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB7 #B78528

analogous

#28A1B7 #285AB7 #3D28B7

triadic

#285AB7 #B7285A #5AB728

tetradic

#285AB7 #B728A1 #B78528 #28B73D

square

#285AB7 #B728A1 #B78528 #28B73D

split-complementary

#285AB7 #B73D28 #A1B728

monochromatic

#122953 #1D4185 #285AB7 #4678D6 #789DE1

Accessibility & contrast

On white

6.49

#285AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#285AB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB7

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB7	#FFFFFF	#000000	##FFFFFF
##285AB7	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F65BA

Deuteranopia (green-blind)

#0058B5

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285ab7;
/* rgb */ color: rgb(40, 90, 183);
/* oklch */ color: oklch(48.8% 0.157 261.4);

Tailwind

colors: {
  custom: {
    50: '#7888cd',
    500: '#285ab7',
    950: '#000000',
  },
}

SCSS

$custom: #285ab7;
$custom-light: #7888cd;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab7",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 183
  },
  "hsl": {
    "h": 219.021,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48753,
    "c": 0.15717,
    "h": 261.4
  },
  "luminance": 0.11182
}

Semantic roles & 50–950 ramp

primary

#285AB7

secondary

#C9AB72

accent

#AD41E7

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285AB7

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

Preview Lab → · Contrast checker → · Palette generator →