#285DB0#285DB0

#285DB0 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.144 H 259.2°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#285DB0
RGB	rgb(40, 93, 176)
HSL	hsl(217, 63%, 42%)
HSV	hsv(217, 77%, 69%)
CMYK	cmyk(77.3%, 47.2%, 0%, 31%)
CIE-LAB	lab(40.27, 12.57, -49.27)
CIE-LCH	lch(40.27, 50.85, 284.31°)
OKLab	oklab(48.9% -0.0269 -0.1414)
OKLCH	oklch(48.9% 0.144 259.2)
XYZ	xyz(12.6230, 11.4130, 42.6035)
Luminance	0.1141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285DB0 #B07B28

analogous

#28A1B0 #285DB0 #3728B0

triadic

#285DB0 #B0285D #5DB028

tetradic

#285DB0 #B028A1 #B07B28 #28B037

square

#285DB0 #B028A1 #B07B28 #28B037

split-complementary

#285DB0 #B03728 #A1B028

monochromatic

#11284C #1D437E #285DB0 #417AD4 #739DDF

Accessibility & contrast

On white

6.40

#285DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#285DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285DB0

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285DB0	#FFFFFF	#000000	##FFFFFF
##285DB0	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3066B3

Deuteranopia (green-blind)

#0A59AE

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #285db0;
/* rgb */ color: rgb(40, 93, 176);
/* oklch */ color: oklch(48.9% 0.144 259.2);

Tailwind

colors: {
  custom: {
    50: '#768ac8',
    500: '#285db0',
    950: '#000000',
  },
}

SCSS

$custom: #285db0;
$custom-light: #768ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#285db0",
  "rgb": {
    "r": 40,
    "g": 93,
    "b": 176
  },
  "hsl": {
    "h": 216.618,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48897,
    "c": 0.14396,
    "h": 259.2
  },
  "luminance": 0.11414
}

Semantic roles & 50–950 ramp

primary

#285DB0

secondary

#C6A46D

accent

#A642E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285DB0

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

Preview Lab → · Contrast checker → · Palette generator →