#285EB0#285EB0

#285EB0 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.1% C 0.143 H 258.8°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#285EB0
RGB	rgb(40, 94, 176)
HSL	hsl(216, 63%, 42%)
HSV	hsv(216, 77%, 69%)
CMYK	cmyk(77.3%, 46.6%, 0%, 31%)
CIE-LAB	lab(40.56, 11.92, -48.81)
CIE-LCH	lch(40.56, 50.24, 283.72°)
OKLab	oklab(49.12% -0.0277 -0.14)
OKLCH	oklch(49.12% 0.143 258.8)
XYZ	xyz(12.7114, 11.5896, 42.6330)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285EB0 #B07A28

analogous

#28A2B0 #285EB0 #3628B0

triadic

#285EB0 #B0285E #5EB028

tetradic

#285EB0 #B028A2 #B07A28 #28B036

square

#285EB0 #B028A2 #B07A28 #28B036

split-complementary

#285EB0 #B03628 #A2B028

monochromatic

#11294C #1D437E #285EB0 #417CD4 #739EDF

Accessibility & contrast

On white

6.33

#285EB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#285EB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285EB0

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285EB0	#FFFFFF	#000000	##FFFFFF
##285EB0	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3266B3

Deuteranopia (green-blind)

#105AAE

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285eb0;
/* rgb */ color: rgb(40, 94, 176);
/* oklch */ color: oklch(49.1% 0.143 258.8);

Tailwind

colors: {
  custom: {
    50: '#768bc8',
    500: '#285eb0',
    950: '#000000',
  },
}

SCSS

$custom: #285eb0;
$custom-light: #768bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#285eb0",
  "rgb": {
    "r": 40,
    "g": 94,
    "b": 176
  },
  "hsl": {
    "h": 216.176,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.4912,
    "c": 0.14276,
    "h": 258.8
  },
  "luminance": 0.11591
}

Semantic roles & 50–950 ramp

primary

#285EB0

secondary

#C6A36D

accent

#A542E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285EB0

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

Preview Lab → · Contrast checker → · Palette generator →