#285AB4#285AB4

#285AB4 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.153 H 261.0°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#285AB4
RGB	rgb(40, 90, 180)
HSL	hsl(219, 64%, 43%)
HSV	hsv(219, 78%, 71%)
CMYK	cmyk(77.8%, 50%, 0%, 29.4%)
CIE-LAB	lab(39.68, 16.08, -52.57)
CIE-LCH	lch(39.68, 54.98, 287.00°)
OKLab	oklab(48.53% -0.0238 -0.1512)
OKLCH	oklch(48.53% 0.153 261)
XYZ	xyz(12.7665, 11.0573, 44.6326)
Luminance	0.1106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285AB4 #B48228

analogous

#28A0B4 #285AB4 #3C28B4

triadic

#285AB4 #B4285A #5AB428

tetradic

#285AB4 #B428A0 #B48228 #28B43C

square

#285AB4 #B428A0 #B48228 #28B43C

split-complementary

#285AB4 #B43C28 #A0B428

monochromatic

#122850 #1D4182 #285AB4 #4478D5 #769CE1

Accessibility & contrast

On white

6.54

#285AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#285AB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285AB4

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285AB4	#FFFFFF	#000000	##FFFFFF
##285AB4	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2464B7

Deuteranopia (green-blind)

#0057B2

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #285ab4;
/* rgb */ color: rgb(40, 90, 180);
/* oklch */ color: oklch(48.5% 0.153 261.0);

Tailwind

colors: {
  custom: {
    50: '#7788cb',
    500: '#285ab4',
    950: '#000000',
  },
}

SCSS

$custom: #285ab4;
$custom-light: #7788cb;
$custom-dark: #000000;

JSON

{
  "hex": "#285ab4",
  "rgb": {
    "r": 40,
    "g": 90,
    "b": 180
  },
  "hsl": {
    "h": 218.571,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48529,
    "c": 0.15308,
    "h": 261
  },
  "luminance": 0.11059
}

Semantic roles & 50–950 ramp

primary

#285AB4

secondary

#C8A970

accent

#AC41E7

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285AB4

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

Preview Lab → · Contrast checker → · Palette generator →