#285EB4#285EB4

#285EB4 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.4% C 0.148 H 259.5°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#285EB4
RGB	rgb(40, 94, 180)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 71%)
CMYK	cmyk(77.8%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(40.82, 13.46, -50.74)
CIE-LCH	lch(40.82, 52.49, 284.86°)
OKLab	oklab(49.4% -0.0271 -0.1457)
OKLCH	oklch(49.4% 0.148 259.5)
XYZ	xyz(13.1130, 11.7503, 44.7481)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285EB4 #B47E28

analogous

#28A4B4 #285EB4 #3828B4

triadic

#285EB4 #B4285E #5EB428

tetradic

#285EB4 #B428A4 #B47E28 #28B438

square

#285EB4 #B428A4 #B47E28 #28B438

split-complementary

#285EB4 #B43828 #A4B428

monochromatic

#122A50 #1D4482 #285EB4 #447CD5 #769FE1

Accessibility & contrast

On white

6.27

#285EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#285EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285EB4

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285EB4	#FFFFFF	#000000	##FFFFFF
##285EB4	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E67B7

Deuteranopia (green-blind)

#005AB2

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285eb4;
/* rgb */ color: rgb(40, 94, 180);
/* oklch */ color: oklch(49.4% 0.148 259.5);

Tailwind

colors: {
  custom: {
    50: '#778bcb',
    500: '#285eb4',
    950: '#000000',
  },
}

SCSS

$custom: #285eb4;
$custom-light: #778bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#285eb4",
  "rgb": {
    "r": 40,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 216.857,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49404,
    "c": 0.14821,
    "h": 259.5
  },
  "luminance": 0.11752
}

Semantic roles & 50–950 ramp

primary

#285EB4

secondary

#C8A670

accent

#A741E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285EB4

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

Preview Lab → · Contrast checker → · Palette generator →