#285BB9#285BB9

#285BB9 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.159 H 261.3°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#285BB9
RGB	rgb(40, 91, 185)
HSL	hsl(219, 64%, 44%)
HSV	hsv(219, 78%, 73%)
CMYK	cmyk(78.4%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(40.30, 17.35, -54.50)
CIE-LCH	lch(40.30, 57.19, 287.66°)
OKLab	oklab(49.12% -0.024 -0.1568)
OKLCH	oklch(49.12% 0.159 261.3)
XYZ	xyz(13.3700, 11.4345, 47.3920)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285BB9 #B98628

analogous

#28A3B9 #285BB9 #3E28B9

triadic

#285BB9 #B9285B #5BB928

tetradic

#285BB9 #B928A3 #B98628 #28B93E

square

#285BB9 #B928A3 #B98628 #28B93E

split-complementary

#285BB9 #B93E28 #A3B928

monochromatic

#122954 #1D4287 #285BB9 #477AD7 #799EE2

Accessibility & contrast

On white

6.39

#285BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#285BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285BB9

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285BB9	#FFFFFF	#000000	##FFFFFF
##285BB9	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F66BC

Deuteranopia (green-blind)

#0059B7

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #285bb9;
/* rgb */ color: rgb(40, 91, 185);
/* oklch */ color: oklch(49.1% 0.159 261.3);

Tailwind

colors: {
  custom: {
    50: '#7888cf',
    500: '#285bb9',
    950: '#000000',
  },
}

SCSS

$custom: #285bb9;
$custom-light: #7888cf;
$custom-dark: #000000;

JSON

{
  "hex": "#285bb9",
  "rgb": {
    "r": 40,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 218.897,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.49118,
    "c": 0.15866,
    "h": 261.3
  },
  "luminance": 0.11436
}

Semantic roles & 50–950 ramp

primary

#285BB9

secondary

#CAAB73

accent

#AD40E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #285BB9

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

Preview Lab → · Contrast checker → · Palette generator →