#285DB4#285DB4

#285DB4 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.149 H 259.9°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#285DB4
RGB	rgb(40, 93, 180)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 71%)
CMYK	cmyk(77.8%, 48.3%, 0%, 29.4%)
CIE-LAB	lab(40.53, 14.11, -51.20)
CIE-LCH	lch(40.53, 53.11, 285.41°)
OKLab	oklab(49.18% -0.0262 -0.1471)
OKLCH	oklch(49.18% 0.149 259.9)
XYZ	xyz(13.0246, 11.5736, 44.7186)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285DB4 #B47F28

analogous

#28A3B4 #285DB4 #3928B4

triadic

#285DB4 #B4285D #5DB428

tetradic

#285DB4 #B428A3 #B47F28 #28B439

square

#285DB4 #B428A3 #B47F28 #28B439

split-complementary

#285DB4 #B43928 #A3B428

monochromatic

#122950 #1D4382 #285DB4 #447BD5 #769EE1

Accessibility & contrast

On white

6.33

#285DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#285DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285DB4

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285DB4	#FFFFFF	#000000	##FFFFFF
##285DB4	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)

#2C66B7

Deuteranopia (green-blind)

#005AB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285db4;
/* rgb */ color: rgb(40, 93, 180);
/* oklch */ color: oklch(49.2% 0.149 259.9);

Tailwind

colors: {
  custom: {
    50: '#778acb',
    500: '#285db4',
    950: '#000000',
  },
}

SCSS

$custom: #285db4;
$custom-light: #778acb;
$custom-dark: #000000;

JSON

{
  "hex": "#285db4",
  "rgb": {
    "r": 40,
    "g": 93,
    "b": 180
  },
  "hsl": {
    "h": 217.286,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49184,
    "c": 0.14942,
    "h": 259.9
  },
  "luminance": 0.11575
}

Semantic roles & 50–950 ramp

primary

#285DB4

secondary

#C8A770

accent

#A841E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285DB4

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

Preview Lab → · Contrast checker → · Palette generator →