#285DB7#285DB7

#285DB7 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.4% C 0.153 H 260.3°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#285DB7
RGB	rgb(40, 93, 183)
HSL	hsl(218, 64%, 44%)
HSV	hsv(218, 78%, 72%)
CMYK	cmyk(78.1%, 49.2%, 0%, 28.2%)
CIE-LAB	lab(40.73, 15.27, -52.63)
CIE-LCH	lch(40.73, 54.80, 286.18°)
OKLab	oklab(49.4% -0.0258 -0.1513)
OKLCH	oklch(49.4% 0.154 260.3)
XYZ	xyz(13.3336, 11.6972, 46.3456)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285DB7 #B78228

analogous

#28A4B7 #285DB7 #3A28B7

triadic

#285DB7 #B7285D #5DB728

tetradic

#285DB7 #B728A4 #B78228 #28B73A

square

#285DB7 #B728A4 #B78228 #28B73A

split-complementary

#285DB7 #B73A28 #A4B728

monochromatic

#122A53 #1D4385 #285DB7 #467BD6 #789FE1

Accessibility & contrast

On white

6.29

#285DB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#285DB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285DB7

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285DB7	#FFFFFF	#000000	##FFFFFF
##285DB7	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2867BA

Deuteranopia (green-blind)

#005AB5

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285db7;
/* rgb */ color: rgb(40, 93, 183);
/* oklch */ color: oklch(49.4% 0.153 260.3);

Tailwind

colors: {
  custom: {
    50: '#788acd',
    500: '#285db7',
    950: '#000000',
  },
}

SCSS

$custom: #285db7;
$custom-light: #788acd;
$custom-dark: #000000;

JSON

{
  "hex": "#285db7",
  "rgb": {
    "r": 40,
    "g": 93,
    "b": 183
  },
  "hsl": {
    "h": 217.762,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.49402,
    "c": 0.1535,
    "h": 260.3
  },
  "luminance": 0.11699
}

Semantic roles & 50–950 ramp

primary

#285DB7

secondary

#C9A972

accent

#A941E7

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285DB7

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

Preview Lab → · Contrast checker → · Palette generator →