#285CB2#285CB2

#285CB2 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.8% C 0.148 H 260.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#285CB2
RGB	rgb(40, 92, 178)
HSL	hsl(217, 63%, 43%)
HSV	hsv(217, 78%, 70%)
CMYK	cmyk(77.5%, 48.3%, 0%, 30.2%)
CIE-LAB	lab(40.11, 13.99, -50.70)
CIE-LCH	lch(40.11, 52.59, 285.43°)
OKLab	oklab(48.82% -0.0257 -0.1456)
OKLCH	oklch(48.82% 0.148 260)
XYZ	xyz(12.7352, 11.3183, 43.6243)
Luminance	0.1132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285CB2 #B27E28

analogous

#28A1B2 #285CB2 #3928B2

triadic

#285CB2 #B2285C #5CB228

tetradic

#285CB2 #B228A1 #B27E28 #28B239

square

#285CB2 #B228A1 #B27E28 #28B239

split-complementary

#285CB2 #B23928 #A1B228

monochromatic

#12284E #1D4280 #285CB2 #437AD5 #759DE0

Accessibility & contrast

On white

6.43

#285CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#285CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285CB2

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285CB2	#FFFFFF	#000000	##FFFFFF
##285CB2	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C65B5

Deuteranopia (green-blind)

#0059B0

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #285cb2;
/* rgb */ color: rgb(40, 92, 178);
/* oklch */ color: oklch(48.8% 0.148 260.0);

Tailwind

colors: {
  custom: {
    50: '#7789ca',
    500: '#285cb2',
    950: '#000000',
  },
}

SCSS

$custom: #285cb2;
$custom-light: #7789ca;
$custom-dark: #000000;

JSON

{
  "hex": "#285cb2",
  "rgb": {
    "r": 40,
    "g": 92,
    "b": 178
  },
  "hsl": {
    "h": 217.391,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.4882,
    "c": 0.14791,
    "h": 260
  },
  "luminance": 0.1132
}

Semantic roles & 50–950 ramp

primary

#285CB2

secondary

#C7A66F

accent

#A841E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285CB2

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

Preview Lab → · Contrast checker → · Palette generator →