#285FB1#285FB1

#285FB1 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.4% C 0.143 H 258.5°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#285FB1
RGB	rgb(40, 95, 177)
HSL	hsl(216, 63%, 43%)
HSV	hsv(216, 77%, 69%)
CMYK	cmyk(77.4%, 46.3%, 0%, 30.6%)
CIE-LAB	lab(40.91, 11.65, -48.83)
CIE-LCH	lch(40.91, 50.20, 283.42°)
OKLab	oklab(49.41% -0.0284 -0.1401)
OKLCH	oklch(49.41% 0.143 258.5)
XYZ	xyz(12.9002, 11.8084, 43.1858)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285FB1 #B17A28

analogous

#28A4B1 #285FB1 #3528B1

triadic

#285FB1 #B1285F #5FB128

tetradic

#285FB1 #B128A4 #B17A28 #28B135

square

#285FB1 #B128A4 #B17A28 #28B135

split-complementary

#285FB1 #B13528 #A4B128

monochromatic

#11294D #1D447F #285FB1 #427DD4 #749FE0

Accessibility & contrast

On white

6.25

#285FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#285FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285FB1

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285FB1	#FFFFFF	#000000	##FFFFFF
##285FB1	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3367B4

Deuteranopia (green-blind)

#125BAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #285fb1;
/* rgb */ color: rgb(40, 95, 177);
/* oklch */ color: oklch(49.4% 0.143 258.5);

Tailwind

colors: {
  custom: {
    50: '#768bc9',
    500: '#285fb1',
    950: '#000000',
  },
}

SCSS

$custom: #285fb1;
$custom-light: #768bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#285fb1",
  "rgb": {
    "r": 40,
    "g": 95,
    "b": 177
  },
  "hsl": {
    "h": 215.912,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.49413,
    "c": 0.14293,
    "h": 258.5
  },
  "luminance": 0.1181
}

Semantic roles & 50–950 ramp

primary

#285FB1

secondary

#C7A36E

accent

#A442E6

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #285FB1

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

Preview Lab → · Contrast checker → · Palette generator →