#285FB3#285FB3

#285FB3 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.6% C 0.146 H 258.9°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#285FB3
RGB	rgb(40, 95, 179)
HSL	hsl(216, 63%, 43%)
HSV	hsv(216, 78%, 70%)
CMYK	cmyk(77.7%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(41.04, 12.42, -49.79)
CIE-LCH	lch(41.04, 51.32, 284.01°)
OKLab	oklab(49.55% -0.028 -0.1429)
OKLCH	oklch(49.55% 0.146 258.9)
XYZ	xyz(13.1010, 11.8887, 44.2434)
Luminance	0.1189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285FB3 #B37C28

analogous

#28A4B3 #285FB3 #3728B3

triadic

#285FB3 #B3285F #5FB328

tetradic

#285FB3 #B328A4 #B37C28 #28B337

square

#285FB3 #B328A4 #B37C28 #28B337

split-complementary

#285FB3 #B33728 #A4B328

monochromatic

#122A4F #1D4481 #285FB3 #437DD5 #75A0E0

Accessibility & contrast

On white

6.22

#285FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#285FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285FB3

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285FB3	#FFFFFF	#000000	##FFFFFF
##285FB3	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3268B6

Deuteranopia (green-blind)

#0C5BB1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #285fb3;
/* rgb */ color: rgb(40, 95, 179);
/* oklch */ color: oklch(49.6% 0.146 258.9);

Tailwind

colors: {
  custom: {
    50: '#778bca',
    500: '#285fb3',
    950: '#000000',
  },
}

SCSS

$custom: #285fb3;
$custom-light: #778bca;
$custom-dark: #000000;

JSON

{
  "hex": "#285fb3",
  "rgb": {
    "r": 40,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 216.259,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49554,
    "c": 0.14566,
    "h": 258.9
  },
  "luminance": 0.1189
}

Semantic roles & 50–950 ramp

primary

#285FB3

secondary

#C8A56F

accent

#A541E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #285FB3

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

Preview Lab → · Contrast checker → · Palette generator →