#285EB3#285EB3

#285EB3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.3% C 0.147 H 259.3°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#285EB3
RGB	rgb(40, 94, 179)
HSL	hsl(217, 63%, 43%)
HSV	hsv(217, 78%, 70%)
CMYK	cmyk(77.7%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(40.75, 13.07, -50.26)
CIE-LCH	lch(40.75, 51.93, 284.58°)
OKLab	oklab(49.33% -0.0272 -0.1443)
OKLCH	oklch(49.33% 0.147 259.3)
XYZ	xyz(13.0115, 11.7097, 44.2135)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285EB3 #B37D28

analogous

#28A3B3 #285EB3 #3828B3

triadic

#285EB3 #B3285E #5EB328

tetradic

#285EB3 #B328A3 #B37D28 #28B338

square

#285EB3 #B328A3 #B37D28 #28B338

split-complementary

#285EB3 #B33828 #A3B328

monochromatic

#12294F #1D4481 #285EB3 #437CD5 #759FE0

Accessibility & contrast

On white

6.28

#285EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#285EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285EB3

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285EB3	#FFFFFF	#000000	##FFFFFF
##285EB3	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F67B6

Deuteranopia (green-blind)

#045AB1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285eb3;
/* rgb */ color: rgb(40, 94, 179);
/* oklch */ color: oklch(49.3% 0.147 259.3);

Tailwind

colors: {
  custom: {
    50: '#778bca',
    500: '#285eb3',
    950: '#000000',
  },
}

SCSS

$custom: #285eb3;
$custom-light: #778bca;
$custom-dark: #000000;

JSON

{
  "hex": "#285eb3",
  "rgb": {
    "r": 40,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 216.691,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49332,
    "c": 0.14686,
    "h": 259.3
  },
  "luminance": 0.11711
}

Semantic roles & 50–950 ramp

primary

#285EB3

secondary

#C8A56F

accent

#A641E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285EB3

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

Preview Lab → · Contrast checker → · Palette generator →