#283C98#283C98

#283C98 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.152 H 269.0°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#283C98
RGB	rgb(40, 60, 152)
HSL	hsl(229, 58%, 38%)
HSV	hsv(229, 74%, 60%)
CMYK	cmyk(73.7%, 60.5%, 0%, 40.4%)
CIE-LAB	lab(29.28, 25.36, -52.67)
CIE-LCH	lch(29.28, 58.45, 295.71°)
OKLab	oklab(40.01% -0.0027 -0.152)
OKLCH	oklch(40.01% 0.152 269)
XYZ	xyz(8.1565, 5.9490, 30.4181)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C98 #988428

analogous

#287498 #283C98 #4C2898

triadic

#283C98 #98283C #3C9828

tetradic

#283C98 #982874 #988428 #28984C

square

#283C98 #982874 #988428 #28984C

split-complementary

#283C98 #984C28 #749828

monochromatic

#0F1637 #1B2968 #283C98 #354FC8 #6479D6

Accessibility & contrast

On white

9.59

#283C98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#283C98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C98

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C98	#FFFFFF	#000000	##FFFFFF
##283C98	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#004096

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283c98;
/* rgb */ color: rgb(40, 60, 152);
/* oklch */ color: oklch(40.0% 0.152 269.0);

Tailwind

colors: {
  custom: {
    50: '#7271b7',
    500: '#283c98',
    950: '#000000',
  },
}

SCSS

$custom: #283c98;
$custom-light: #7271b7;
$custom-dark: #000000;

JSON

{
  "hex": "#283c98",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 152
  },
  "hsl": {
    "h": 229.286,
    "s": 58.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40012,
    "c": 0.15201,
    "h": 269
  },
  "luminance": 0.0595
}

Semantic roles & 50–950 ramp

primary

#283C98

secondary

#BCAC60

accent

#C646E2

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283C98

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

Preview Lab → · Contrast checker → · Palette generator →