#283574#283574

#283574 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.5% C 0.109 H 271.1°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#283574
RGB	rgb(40, 53, 116)
HSL	hsl(230, 49%, 31%)
HSV	hsv(230, 66%, 45%)
CMYK	cmyk(65.5%, 54.3%, 0%, 54.5%)
CIE-LAB	lab(24.51, 16.42, -37.99)
CIE-LCH	lch(24.51, 41.38, 293.38°)
OKLab	oklab(35.54% 0.0021 -0.1089)
OKLCH	oklch(35.54% 0.109 271.1)
XYZ	xyz(5.2995, 4.2578, 17.0622)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283574 #746728

analogous

#285B74 #283574 #412874

triadic

#283574 #742835 #357428

tetradic

#283574 #74285B #746728 #287441

square

#283574 #74285B #746728 #287441

split-complementary

#283574 #744128 #5B7428

monochromatic

#090B19 #182046 #283574 #384AA2 #5366C4

Accessibility & contrast

On white

11.34

#283574 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#283574 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283574

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283574	#FFFFFF	#000000	##FFFFFF
##283574	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3E76

Deuteranopia (green-blind)

#003773

Tritanopia (blue-blind)

#00444F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283574;
/* rgb */ color: rgb(40, 53, 116);
/* oklch */ color: oklch(35.5% 0.109 271.1);

Tailwind

colors: {
  custom: {
    50: '#6b6c9c',
    500: '#283574',
    950: '#000000',
  },
}

SCSS

$custom: #283574;
$custom-light: #6b6c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#283574",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 116
  },
  "hsl": {
    "h": 229.737,
    "s": 48.718,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35539,
    "c": 0.10894,
    "h": 271.1
  },
  "luminance": 0.04258
}

Semantic roles & 50–950 ramp

primary

#283574

secondary

#A69852

accent

#C150D8

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283574

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

Preview Lab → · Contrast checker → · Palette generator →