#282F8F#282F8F

#282F8F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.7% C 0.156 H 272.7°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#282F8F
RGB	rgb(40, 47, 143)
HSL	hsl(236, 56%, 36%)
HSV	hsv(236, 72%, 56%)
CMYK	cmyk(72%, 67.1%, 0%, 43.9%)
CIE-LAB	lab(25.16, 30.65, -53.88)
CIE-LCH	lch(25.16, 61.99, 299.63°)
OKLab	oklab(36.73% 0.0073 -0.1557)
OKLCH	oklch(36.73% 0.156 272.7)
XYZ	xyz(6.8478, 4.4666, 26.4825)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282F8F #8F8828

analogous

#28628F #282F8F #54288F

triadic

#282F8F #8F282F #2F8F28

tetradic

#282F8F #8F2862 #8F8828 #288F54

square

#282F8F #8F2862 #8F8828 #288F54

split-complementary

#282F8F #8F5428 #628F28

monochromatic

#0D102F #1B1F5F #282F8F #353FBF #5F67D2

Accessibility & contrast

On white

11.09

#282F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#282F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282F8F

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282F8F	#FFFFFF	#000000	##FFFFFF
##282F8F	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004092

Deuteranopia (green-blind)

#00378D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #282f8f;
/* rgb */ color: rgb(40, 47, 143);
/* oklch */ color: oklch(36.7% 0.156 272.7);

Tailwind

colors: {
  custom: {
    50: '#7167b1',
    500: '#282f8f',
    950: '#000000',
  },
}

SCSS

$custom: #282f8f;
$custom-light: #7167b1;
$custom-dark: #000000;

JSON

{
  "hex": "#282f8f",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 143
  },
  "hsl": {
    "h": 235.922,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36727,
    "c": 0.15584,
    "h": 272.7
  },
  "luminance": 0.04467
}

Semantic roles & 50–950 ramp

primary

#282F8F

secondary

#B8B15B

accent

#D548E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #282F8F

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

Preview Lab → · Contrast checker → · Palette generator →