#282B8E#282B8E

#282B8E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.9% C 0.159 H 273.7°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#282B8E
RGB	rgb(40, 43, 142)
HSL	hsl(238, 56%, 36%)
HSV	hsv(238, 72%, 56%)
CMYK	cmyk(71.8%, 69.7%, 0%, 44.3%)
CIE-LAB	lab(24.10, 32.87, -55.00)
CIE-LCH	lch(24.10, 64.07, 300.87°)
OKLab	oklab(35.93% 0.0102 -0.1589)
OKLCH	oklch(35.93% 0.159 273.7)
XYZ	xyz(6.6198, 4.1312, 26.0345)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282B8E #8E8B28

analogous

#285E8E #282B8E #58288E

triadic

#282B8E #8E282B #2B8E28

tetradic

#282B8E #8E285E #8E8B28 #288E58

square

#282B8E #8E285E #8E8B28 #288E58

split-complementary

#282B8E #8E5828 #5E8E28

monochromatic

#0D0E2F #1B1D5E #282B8E #3539BE #5F62D2

Accessibility & contrast

On white

11.50

#282B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#282B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282B8E

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282B8E	#FFFFFF	#000000	##FFFFFF
##282B8E	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00358C

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #282b8e;
/* rgb */ color: rgb(40, 43, 142);
/* oklch */ color: oklch(35.9% 0.159 273.7);

Tailwind

colors: {
  custom: {
    50: '#7165b0',
    500: '#282b8e',
    950: '#000000',
  },
}

SCSS

$custom: #282b8e;
$custom-light: #7165b0;
$custom-dark: #000000;

JSON

{
  "hex": "#282b8e",
  "rgb": {
    "r": 40,
    "g": 43,
    "b": 142
  },
  "hsl": {
    "h": 238.235,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.3593,
    "c": 0.15926,
    "h": 273.7
  },
  "luminance": 0.04132
}

Semantic roles & 50–950 ramp

primary

#282B8E

secondary

#B7B55B

accent

#DB48DF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #282B8E

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

Preview Lab → · Contrast checker → · Palette generator →