#284B83#284B83

#284B83 is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.7% C 0.102 H 259.4°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#284B83
RGB	rgb(40, 75, 131)
HSL	hsl(217, 53%, 34%)
HSV	hsv(217, 69%, 51%)
CMYK	cmyk(69.5%, 42.7%, 0%, 48.6%)
CIE-LAB	lab(32.08, 7.08, -35.25)
CIE-LCH	lch(32.08, 35.96, 281.36°)
OKLab	oklab(41.66% -0.0188 -0.1005)
OKLCH	oklch(41.66% 0.102 259.4)
XYZ	xyz(7.4864, 7.1212, 22.4483)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B83 #836028

analogous

#287883 #284B83 #322883

triadic

#284B83 #83284B #4B8328

tetradic

#284B83 #832878 #836028 #288332

square

#284B83 #832878 #836028 #288332

split-complementary

#284B83 #833228 #788328

monochromatic

#0B1525 #1A3054 #284B83 #3666B2 #5985CC

Accessibility & contrast

On white

8.66

#284B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#284B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B83

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B83	#FFFFFF	#000000	##FFFFFF
##284B83	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315085

Deuteranopia (green-blind)

#234882

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #284b83;
/* rgb */ color: rgb(40, 75, 131);
/* oklch */ color: oklch(41.7% 0.102 259.4);

Tailwind

colors: {
  custom: {
    50: '#6d7ca7',
    500: '#284b83',
    950: '#000000',
  },
}

SCSS

$custom: #284b83;
$custom-light: #6d7ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#284b83",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 131
  },
  "hsl": {
    "h": 216.923,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.41659,
    "c": 0.10228,
    "h": 259.4
  },
  "luminance": 0.07122
}

Semantic roles & 50–950 ramp

primary

#284B83

secondary

#B18E55

accent

#A54BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284B83

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

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