#284B84#284B84

#284B84 is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.7% C 0.104 H 259.7°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#284B84
RGB	rgb(40, 75, 132)
HSL	hsl(217, 53%, 34%)
HSV	hsv(217, 70%, 52%)
CMYK	cmyk(69.7%, 43.2%, 0%, 48.2%)
CIE-LAB	lab(32.14, 7.47, -35.77)
CIE-LCH	lch(32.14, 36.54, 281.79°)
OKLab	oklab(41.73% -0.0186 -0.1021)
OKLCH	oklch(41.73% 0.104 259.7)
XYZ	xyz(7.5545, 7.1485, 22.8070)
Luminance	0.0715 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B84 #846128

analogous

#287984 #284B84 #332884

triadic

#284B84 #84284B #4B8428

tetradic

#284B84 #842879 #846128 #288433

square

#284B84 #842879 #846128 #288433

split-complementary

#284B84 #843328 #798428

monochromatic

#0C1626 #1A3055 #284B84 #3666B3 #5A85CD

Accessibility & contrast

On white

8.64

#284B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#284B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B84

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B84	#FFFFFF	#000000	##FFFFFF
##284B84	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305086

Deuteranopia (green-blind)

#224883

Tritanopia (blue-blind)

#005861

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #284b84;
/* rgb */ color: rgb(40, 75, 132);
/* oklch */ color: oklch(41.7% 0.104 259.7);

Tailwind

colors: {
  custom: {
    50: '#6d7ca8',
    500: '#284b84',
    950: '#000000',
  },
}

SCSS

$custom: #284b84;
$custom-light: #6d7ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#284b84",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 132
  },
  "hsl": {
    "h": 217.174,
    "s": 53.488,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41727,
    "c": 0.10375,
    "h": 259.7
  },
  "luminance": 0.07149
}

Semantic roles & 50–950 ramp

primary

#284B84

secondary

#B28F56

accent

#A54BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284B84

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

Preview Lab → · Contrast checker → · Palette generator →