#285CB3#285CB3

#285CB3 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.149 H 260.1°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#285CB3
RGB	rgb(40, 92, 179)
HSL	hsl(218, 63%, 43%)
HSV	hsv(218, 78%, 70%)
CMYK	cmyk(77.7%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(40.18, 14.38, -51.18)
CIE-LCH	lch(40.18, 53.16, 285.69°)
OKLab	oklab(48.89% -0.0256 -0.1471)
OKLCH	oklch(48.89% 0.149 260.1)
XYZ	xyz(12.8359, 11.3586, 44.1550)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285CB3 #B37F28

analogous

#28A1B3 #285CB3 #3A28B3

triadic

#285CB3 #B3285C #5CB328

tetradic

#285CB3 #B328A1 #B37F28 #28B33A

square

#285CB3 #B328A1 #B37F28 #28B33A

split-complementary

#285CB3 #B33A28 #A1B328

monochromatic

#12294F #1D4281 #285CB3 #437AD5 #759DE0

Accessibility & contrast

On white

6.42

#285CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#285CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285CB3

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285CB3	#FFFFFF	#000000	##FFFFFF
##285CB3	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A65B6

Deuteranopia (green-blind)

#0059B1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #285cb3;
/* rgb */ color: rgb(40, 92, 179);
/* oklch */ color: oklch(48.9% 0.149 260.1);

Tailwind

colors: {
  custom: {
    50: '#7789ca',
    500: '#285cb3',
    950: '#000000',
  },
}

SCSS

$custom: #285cb3;
$custom-light: #7789ca;
$custom-dark: #000000;

JSON

{
  "hex": "#285cb3",
  "rgb": {
    "r": 40,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 217.554,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48892,
    "c": 0.14927,
    "h": 260.1
  },
  "luminance": 0.1136
}

Semantic roles & 50–950 ramp

primary

#285CB3

secondary

#C8A76F

accent

#A941E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285CB3

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

Preview Lab → · Contrast checker → · Palette generator →