#284C98#284C98

#284C98 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.4% C 0.131 H 263.0°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#284C98
RGB	rgb(40, 76, 152)
HSL	hsl(221, 58%, 38%)
HSV	hsv(221, 74%, 60%)
CMYK	cmyk(73.7%, 50%, 0%, 40.4%)
CIE-LAB	lab(33.74, 14.53, -45.44)
CIE-LCH	lch(33.74, 47.71, 287.73°)
OKLab	oklab(43.38% -0.016 -0.1305)
OKLCH	oklch(43.38% 0.131 263)
XYZ	xyz(9.1250, 7.8860, 30.7409)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284C98 #987428

analogous

#288498 #284C98 #3C2898

triadic

#284C98 #98284C #4C9828

tetradic

#284C98 #982884 #987428 #28983C

square

#284C98 #982884 #987428 #28983C

split-complementary

#284C98 #983C28 #849828

monochromatic

#0F1C37 #1B3468 #284C98 #3564C8 #6489D6

Accessibility & contrast

On white

8.15

#284C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#284C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284C98

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284C98	#FFFFFF	#000000	##FFFFFF
##284C98	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21559B

Deuteranopia (green-blind)

#004B96

Tritanopia (blue-blind)

#005E6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #284c98;
/* rgb */ color: rgb(40, 76, 152);
/* oklch */ color: oklch(43.4% 0.131 263.0);

Tailwind

colors: {
  custom: {
    50: '#717db7',
    500: '#284c98',
    950: '#000000',
  },
}

SCSS

$custom: #284c98;
$custom-light: #717db7;
$custom-dark: #000000;

JSON

{
  "hex": "#284c98",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 152
  },
  "hsl": {
    "h": 220.714,
    "s": 58.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43379,
    "c": 0.13145,
    "h": 263
  },
  "luminance": 0.07887
}

Semantic roles & 50–950 ramp

primary

#284C98

secondary

#BC9E60

accent

#B046E2

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #284C98

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

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