#283170#283170

#283170 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.4% C 0.108 H 273.2°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#283170
RGB	rgb(40, 49, 112)
HSL	hsl(233, 47%, 30%)
HSV	hsv(233, 64%, 44%)
CMYK	cmyk(64.3%, 56.3%, 0%, 56.1%)
CIE-LAB	lab(23.06, 17.70, -37.77)
CIE-LCH	lch(23.06, 41.71, 295.11°)
OKLab	oklab(34.35% 0.006 -0.1083)
OKLCH	oklch(34.35% 0.109 273.2)
XYZ	xyz(4.8970, 3.8172, 15.8048)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283170 #706728

analogous

#285570 #283170 #432870

triadic

#283170 #702831 #317028

tetradic

#283170 #702855 #706728 #287043

square

#283170 #702855 #706728 #287043

split-complementary

#283170 #704328 #557028

monochromatic

#080A17 #181D43 #283170 #38459D #515FC1

Accessibility & contrast

On white

11.91

#283170 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#283170 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283170

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283170	#FFFFFF	#000000	##FFFFFF
##283170	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083A72

Deuteranopia (green-blind)

#00346F

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #283170;
/* rgb */ color: rgb(40, 49, 112);
/* oklch */ color: oklch(34.4% 0.108 273.2);

Tailwind

colors: {
  custom: {
    50: '#6a689a',
    500: '#283170',
    950: '#000000',
  },
}

SCSS

$custom: #283170;
$custom-light: #6a689a;
$custom-dark: #000000;

JSON

{
  "hex": "#283170",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 112
  },
  "hsl": {
    "h": 232.5,
    "s": 47.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.34353,
    "c": 0.1085,
    "h": 273.2
  },
  "luminance": 0.03818
}

Semantic roles & 50–950 ramp

primary

#283170

secondary

#A29851

accent

#C651D7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283170

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

Preview Lab → · Contrast checker → · Palette generator →