#284B98#284B98

#284B98 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.2% C 0.133 H 263.5°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#284B98
RGB	rgb(40, 75, 152)
HSL	hsl(221, 58%, 38%)
HSV	hsv(221, 74%, 60%)
CMYK	cmyk(73.7%, 50.7%, 0%, 40.4%)
CIE-LAB	lab(33.46, 15.20, -45.90)
CIE-LCH	lch(33.46, 48.36, 288.33°)
OKLab	oklab(43.16% -0.0151 -0.1319)
OKLCH	oklch(43.16% 0.133 263.5)
XYZ	xyz(9.0566, 7.7493, 30.7181)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284B98 #987528

analogous

#288398 #284B98 #3D2898

triadic

#284B98 #98284B #4B9828

tetradic

#284B98 #982883 #987528 #28983D

square

#284B98 #982883 #987528 #28983D

split-complementary

#284B98 #983D28 #839828

monochromatic

#0F1B37 #1B3368 #284B98 #3563C8 #6488D6

Accessibility & contrast

On white

8.24

#284B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#284B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284B98

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284B98	#FFFFFF	#000000	##FFFFFF
##284B98	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E549B

Deuteranopia (green-blind)

#004A96

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284b98;
/* rgb */ color: rgb(40, 75, 152);
/* oklch */ color: oklch(43.2% 0.133 263.5);

Tailwind

colors: {
  custom: {
    50: '#717cb7',
    500: '#284b98',
    950: '#000000',
  },
}

SCSS

$custom: #284b98;
$custom-light: #717cb7;
$custom-dark: #000000;

JSON

{
  "hex": "#284b98",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 152
  },
  "hsl": {
    "h": 221.25,
    "s": 58.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43158,
    "c": 0.13272,
    "h": 263.5
  },
  "luminance": 0.0775
}

Semantic roles & 50–950 ramp

primary

#284B98

secondary

#BC9F60

accent

#B146E2

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #284B98

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

Preview Lab → · Contrast checker → · Palette generator →