#285AB0#285AB0

#285AB0 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.148 H 260.5°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#285AB0
RGB	rgb(40, 90, 176)
HSL	hsl(218, 63%, 42%)
HSV	hsv(218, 77%, 69%)
CMYK	cmyk(77.3%, 48.9%, 0%, 31%)
CIE-LAB	lab(39.41, 14.53, -50.66)
CIE-LCH	lch(39.41, 52.70, 286.01°)
OKLab	oklab(48.24% -0.0244 -0.1456)
OKLCH	oklch(48.24% 0.148 260.5)
XYZ	xyz(12.3649, 10.8966, 42.5175)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB0 #B07E28

analogous

#289EB0 #285AB0 #3A28B0

triadic

#285AB0 #B0285A #5AB028

tetradic

#285AB0 #B0289E #B07E28 #28B03A

square

#285AB0 #B0289E #B07E28 #28B03A

split-complementary

#285AB0 #B03A28 #9EB028

monochromatic

#11274C #1D417E #285AB0 #4177D4 #739BDF

Accessibility & contrast

On white

6.60

#285AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#285AB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB0

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB0	#FFFFFF	#000000	##FFFFFF
##285AB0	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2963B3

Deuteranopia (green-blind)

#0057AE

Tritanopia (blue-blind)

#006F7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #285ab0;
/* rgb */ color: rgb(40, 90, 176);
/* oklch */ color: oklch(48.2% 0.148 260.5);

Tailwind

colors: {
  custom: {
    50: '#7688c8',
    500: '#285ab0',
    950: '#000000',
  },
}

SCSS

$custom: #285ab0;
$custom-light: #7688c8;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab0",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 176
  },
  "hsl": {
    "h": 217.941,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48235,
    "c": 0.14759,
    "h": 260.5
  },
  "luminance": 0.10898
}

Semantic roles & 50–950 ramp

primary

#285AB0

secondary

#C6A66D

accent

#AA42E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285AB0

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

Preview Lab → · Contrast checker → · Palette generator →