#285BB4#285BB4

#285BB4 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.152 H 260.7°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#285BB4
RGB	rgb(40, 91, 180)
HSL	hsl(218, 64%, 43%)
HSV	hsv(218, 78%, 71%)
CMYK	cmyk(77.8%, 49.4%, 0%, 29.4%)
CIE-LAB	lab(39.96, 15.42, -52.12)
CIE-LCH	lch(39.96, 54.35, 286.48°)
OKLab	oklab(48.75% -0.0246 -0.1498)
OKLCH	oklch(48.75% 0.152 260.7)
XYZ	xyz(12.8514, 11.2271, 44.6609)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285BB4 #B48128

analogous

#28A1B4 #285BB4 #3B28B4

triadic

#285BB4 #B4285B #5BB428

tetradic

#285BB4 #B428A1 #B48128 #28B43B

square

#285BB4 #B428A1 #B48128 #28B43B

split-complementary

#285BB4 #B43B28 #A1B428

monochromatic

#122850 #1D4282 #285BB4 #4479D5 #769DE1

Accessibility & contrast

On white

6.47

#285BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#285BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285BB4

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285BB4	#FFFFFF	#000000	##FFFFFF
##285BB4	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2765B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285bb4;
/* rgb */ color: rgb(40, 91, 180);
/* oklch */ color: oklch(48.7% 0.152 260.7);

Tailwind

colors: {
  custom: {
    50: '#7788cb',
    500: '#285bb4',
    950: '#000000',
  },
}

SCSS

$custom: #285bb4;
$custom-light: #7788cb;
$custom-dark: #000000;

JSON

{
  "hex": "#285bb4",
  "rgb": {
    "r": 40,
    "g": 91,
    "b": 180
  },
  "hsl": {
    "h": 218.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48747,
    "c": 0.15185,
    "h": 260.7
  },
  "luminance": 0.11229
}

Semantic roles & 50–950 ramp

primary

#285BB4

secondary

#C8A870

accent

#AA41E7

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285BB4

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

Preview Lab → · Contrast checker → · Palette generator →