#283685#283685

#283685 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.133 H 270.9°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#283685
RGB	rgb(40, 54, 133)
HSL	hsl(231, 54%, 34%)
HSV	hsv(231, 70%, 52%)
CMYK	cmyk(69.9%, 59.4%, 0%, 47.8%)
CIE-LAB	lab(26.11, 22.21, -46.12)
CIE-LCH	lch(26.11, 51.19, 295.71°)
OKLab	oklab(37.16% 0.002 -0.1328)
OKLCH	oklch(37.16% 0.133 270.9)
XYZ	xyz(6.4264, 4.7823, 22.7702)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283685 #857728

analogous

#286585 #283685 #492885

triadic

#283685 #852836 #368528

tetradic

#283685 #852865 #857728 #288549

square

#283685 #852865 #857728 #288549

split-complementary

#283685 #854928 #658528

monochromatic

#0C1027 #1A2356 #283685 #3649B4 #5A6BCD

Accessibility & contrast

On white

10.73

#283685 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#283685 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283685

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283685	#FFFFFF	#000000	##FFFFFF
##283685	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004288

Deuteranopia (green-blind)

#003A83

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #283685;
/* rgb */ color: rgb(40, 54, 133);
/* oklch */ color: oklch(37.2% 0.133 270.9);

Tailwind

colors: {
  custom: {
    50: '#6e6ca9',
    500: '#283685',
    950: '#000000',
  },
}

SCSS

$custom: #283685;
$custom-light: #6e6ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#283685",
  "rgb": {
    "r": 40,
    "g": 54,
    "b": 133
  },
  "hsl": {
    "h": 230.968,
    "s": 53.757,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37156,
    "c": 0.13284,
    "h": 270.9
  },
  "luminance": 0.04783
}

Semantic roles & 50–950 ramp

primary

#283685

secondary

#B3A556

accent

#C74BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #283685

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

Preview Lab → · Contrast checker → · Palette generator →