#285CB0#285CB0

#285CB0 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.145 H 259.7°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#285CB0
RGB	rgb(40, 92, 176)
HSL	hsl(217, 63%, 42%)
HSV	hsv(217, 77%, 69%)
CMYK	cmyk(77.3%, 47.7%, 0%, 31%)
CIE-LAB	lab(39.98, 13.22, -49.73)
CIE-LCH	lch(39.98, 51.46, 284.89°)
OKLab	oklab(48.68% -0.0261 -0.1428)
OKLCH	oklch(48.68% 0.145 259.7)
XYZ	xyz(12.5358, 11.2386, 42.5745)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285CB0 #B07C28

analogous

#28A0B0 #285CB0 #3828B0

triadic

#285CB0 #B0285C #5CB028

tetradic

#285CB0 #B028A0 #B07C28 #28B038

square

#285CB0 #B028A0 #B07C28 #28B038

split-complementary

#285CB0 #B03828 #A0B028

monochromatic

#11284C #1D427E #285CB0 #4179D4 #739CDF

Accessibility & contrast

On white

6.47

#285CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#285CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285CB0

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285CB0	#FFFFFF	#000000	##FFFFFF
##285CB0	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E65B3

Deuteranopia (green-blind)

#0358AE

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285cb0;
/* rgb */ color: rgb(40, 92, 176);
/* oklch */ color: oklch(48.7% 0.145 259.7);

Tailwind

colors: {
  custom: {
    50: '#7689c8',
    500: '#285cb0',
    950: '#000000',
  },
}

SCSS

$custom: #285cb0;
$custom-light: #7689c8;
$custom-dark: #000000;

JSON

{
  "hex": "#285cb0",
  "rgb": {
    "r": 40,
    "g": 92,
    "b": 176
  },
  "hsl": {
    "h": 217.059,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48676,
    "c": 0.14517,
    "h": 259.7
  },
  "luminance": 0.1124
}

Semantic roles & 50–950 ramp

primary

#285CB0

secondary

#C6A46D

accent

#A742E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285CB0

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

Preview Lab → · Contrast checker → · Palette generator →