#285CB1#285CB1

#285CB1 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.147 H 259.8°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#285CB1
RGB	rgb(40, 92, 177)
HSL	hsl(217, 63%, 43%)
HSV	hsv(217, 77%, 69%)
CMYK	cmyk(77.4%, 48%, 0%, 30.6%)
CIE-LAB	lab(40.05, 13.61, -50.22)
CIE-LCH	lch(40.05, 52.03, 285.16°)
OKLab	oklab(48.75% -0.0259 -0.1442)
OKLCH	oklch(48.75% 0.147 259.8)
XYZ	xyz(12.6351, 11.2783, 43.0975)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285CB1 #B17D28

analogous

#28A1B1 #285CB1 #3828B1

triadic

#285CB1 #B1285C #5CB128

tetradic

#285CB1 #B128A1 #B17D28 #28B138

square

#285CB1 #B128A1 #B17D28 #28B138

split-complementary

#285CB1 #B13828 #A1B128

monochromatic

#11284D #1D427F #285CB1 #4279D4 #749DE0

Accessibility & contrast

On white

6.45

#285CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#285CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285CB1

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285CB1	#FFFFFF	#000000	##FFFFFF
##285CB1	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D65B4

Deuteranopia (green-blind)

#0059AF

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285cb1;
/* rgb */ color: rgb(40, 92, 177);
/* oklch */ color: oklch(48.7% 0.147 259.8);

Tailwind

colors: {
  custom: {
    50: '#7689c9',
    500: '#285cb1',
    950: '#000000',
  },
}

SCSS

$custom: #285cb1;
$custom-light: #7689c9;
$custom-dark: #000000;

JSON

{
  "hex": "#285cb1",
  "rgb": {
    "r": 40,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 217.226,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48747,
    "c": 0.14654,
    "h": 259.8
  },
  "luminance": 0.1128
}

Semantic roles & 50–950 ramp

primary

#285CB1

secondary

#C7A56E

accent

#A842E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285CB1

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

Preview Lab → · Contrast checker → · Palette generator →