#285AB2#285AB2

#285AB2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.4% C 0.150 H 260.8°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#285AB2
RGB	rgb(40, 90, 178)
HSL	hsl(218, 63%, 43%)
HSV	hsv(218, 78%, 70%)
CMYK	cmyk(77.5%, 49.4%, 0%, 30.2%)
CIE-LAB	lab(39.54, 15.30, -51.62)
CIE-LCH	lch(39.54, 53.84, 286.51°)
OKLab	oklab(48.38% -0.0241 -0.1484)
OKLCH	oklch(48.38% 0.15 260.8)
XYZ	xyz(12.5642, 10.9764, 43.5673)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB2 #B28028

analogous

#289FB2 #285AB2 #3B28B2

triadic

#285AB2 #B2285A #5AB228

tetradic

#285AB2 #B2289F #B28028 #28B23B

square

#285AB2 #B2289F #B28028 #28B23B

split-complementary

#285AB2 #B23B28 #9FB228

monochromatic

#12274E #1D4180 #285AB2 #4377D5 #759BE0

Accessibility & contrast

On white

6.57

#285AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#285AB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB2

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB2	#FFFFFF	#000000	##FFFFFF
##285AB2	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #285ab2;
/* rgb */ color: rgb(40, 90, 178);
/* oklch */ color: oklch(48.4% 0.150 260.8);

Tailwind

colors: {
  custom: {
    50: '#7788ca',
    500: '#285ab2',
    950: '#000000',
  },
}

SCSS

$custom: #285ab2;
$custom-light: #7788ca;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab2",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 178
  },
  "hsl": {
    "h": 218.261,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48382,
    "c": 0.15034,
    "h": 260.8
  },
  "luminance": 0.10978
}

Semantic roles & 50–950 ramp

primary

#285AB2

secondary

#C7A76F

accent

#AB41E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285AB2

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

Preview Lab → · Contrast checker → · Palette generator →