#285BB0#285BB0

#285BB0 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.146 H 260.1°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#285BB0
RGB	rgb(40, 91, 176)
HSL	hsl(218, 63%, 42%)
HSV	hsv(218, 77%, 69%)
CMYK	cmyk(77.3%, 48.3%, 0%, 31%)
CIE-LAB	lab(39.69, 13.88, -50.20)
CIE-LCH	lch(39.69, 52.08, 285.45°)
OKLab	oklab(48.46% -0.0252 -0.1442)
OKLCH	oklch(48.46% 0.146 260.1)
XYZ	xyz(12.4498, 11.0664, 42.5458)
Luminance	0.1107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285BB0 #B07D28

analogous

#289FB0 #285BB0 #3928B0

triadic

#285BB0 #B0285B #5BB028

tetradic

#285BB0 #B0289F #B07D28 #28B039

square

#285BB0 #B0289F #B07D28 #28B039

split-complementary

#285BB0 #B03928 #9FB028

monochromatic

#11274C #1D417E #285BB0 #4178D4 #739CDF

Accessibility & contrast

On white

6.53

#285BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#285BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285BB0

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285BB0	#FFFFFF	#000000	##FFFFFF
##285BB0	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B64B3

Deuteranopia (green-blind)

#0058AE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #285bb0;
/* rgb */ color: rgb(40, 91, 176);
/* oklch */ color: oklch(48.5% 0.146 260.1);

Tailwind

colors: {
  custom: {
    50: '#7688c8',
    500: '#285bb0',
    950: '#000000',
  },
}

SCSS

$custom: #285bb0;
$custom-light: #7688c8;
$custom-dark: #000000;

JSON

{
  "hex": "#285bb0",
  "rgb": {
    "r": 40,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 217.5,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48455,
    "c": 0.14638,
    "h": 260.1
  },
  "luminance": 0.11068
}

Semantic roles & 50–950 ramp

primary

#285BB0

secondary

#C6A56D

accent

#A842E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285BB0

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

Preview Lab → · Contrast checker → · Palette generator →