#285EB1#285EB1

#285EB1 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.144 H 259.0°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#285EB1
RGB	rgb(40, 94, 177)
HSL	hsl(216, 63%, 43%)
HSV	hsv(216, 77%, 69%)
CMYK	cmyk(77.4%, 46.9%, 0%, 30.6%)
CIE-LAB	lab(40.62, 12.30, -49.29)
CIE-LCH	lch(40.62, 50.80, 284.01°)
OKLab	oklab(49.19% -0.0276 -0.1415)
OKLCH	oklch(49.19% 0.144 259)
XYZ	xyz(12.8107, 11.6294, 43.1560)
Luminance	0.1163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285EB1 #B17B28

analogous

#28A3B1 #285EB1 #3628B1

triadic

#285EB1 #B1285E #5EB128

tetradic

#285EB1 #B128A3 #B17B28 #28B136

square

#285EB1 #B128A3 #B17B28 #28B136

split-complementary

#285EB1 #B13628 #A3B128

monochromatic

#11294D #1D437F #285EB1 #427CD4 #749EE0

Accessibility & contrast

On white

6.31

#285EB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#285EB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285EB1

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285EB1	#FFFFFF	#000000	##FFFFFF
##285EB1	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B4

Deuteranopia (green-blind)

#0D5AAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285eb1;
/* rgb */ color: rgb(40, 94, 177);
/* oklch */ color: oklch(49.2% 0.144 259.0);

Tailwind

colors: {
  custom: {
    50: '#768bc9',
    500: '#285eb1',
    950: '#000000',
  },
}

SCSS

$custom: #285eb1;
$custom-light: #768bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#285eb1",
  "rgb": {
    "r": 40,
    "g": 94,
    "b": 177
  },
  "hsl": {
    "h": 216.35,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4919,
    "c": 0.14412,
    "h": 259
  },
  "luminance": 0.11631
}

Semantic roles & 50–950 ramp

primary

#285EB1

secondary

#C7A46E

accent

#A542E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285EB1

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

Preview Lab → · Contrast checker → · Palette generator →