#285DB1#285DB1

#285DB1 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.0% C 0.145 H 259.4°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#285DB1
RGB	rgb(40, 93, 177)
HSL	hsl(217, 63%, 43%)
HSV	hsv(217, 77%, 69%)
CMYK	cmyk(77.4%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(40.33, 12.95, -49.75)
CIE-LCH	lch(40.33, 51.41, 284.59°)
OKLab	oklab(48.97% -0.0267 -0.1428)
OKLCH	oklch(48.97% 0.145 259.4)
XYZ	xyz(12.7223, 11.4527, 43.1265)
Luminance	0.1145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285DB1 #B17C28

analogous

#28A2B1 #285DB1 #3728B1

triadic

#285DB1 #B1285D #5DB128

tetradic

#285DB1 #B128A2 #B17C28 #28B137

square

#285DB1 #B128A2 #B17C28 #28B137

split-complementary

#285DB1 #B13728 #A2B128

monochromatic

#11294D #1D437F #285DB1 #427BD4 #749EE0

Accessibility & contrast

On white

6.38

#285DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#285DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285DB1

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285DB1	#FFFFFF	#000000	##FFFFFF
##285DB1	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F66B4

Deuteranopia (green-blind)

#0659AF

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #285db1;
/* rgb */ color: rgb(40, 93, 177);
/* oklch */ color: oklch(49.0% 0.145 259.4);

Tailwind

colors: {
  custom: {
    50: '#768ac9',
    500: '#285db1',
    950: '#000000',
  },
}

SCSS

$custom: #285db1;
$custom-light: #768ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#285db1",
  "rgb": {
    "r": 40,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 216.788,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48968,
    "c": 0.14533,
    "h": 259.4
  },
  "luminance": 0.11454
}

Semantic roles & 50–950 ramp

primary

#285DB1

secondary

#C7A46E

accent

#A742E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285DB1

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

Preview Lab → · Contrast checker → · Palette generator →