#283D98#283D98

#283D98 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.151 H 268.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#283D98
RGB	rgb(40, 61, 152)
HSL	hsl(229, 58%, 38%)
HSV	hsv(229, 74%, 60%)
CMYK	cmyk(73.7%, 59.9%, 0%, 40.4%)
CIE-LAB	lab(29.55, 24.68, -52.23)
CIE-LCH	lch(29.55, 57.77, 295.29°)
OKLab	oklab(40.21% -0.0034 -0.1507)
OKLCH	oklch(40.21% 0.151 268.7)
XYZ	xyz(8.2094, 6.0547, 30.4357)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D98 #988328

analogous

#287598 #283D98 #4B2898

triadic

#283D98 #98283D #3D9828

tetradic

#283D98 #982875 #988328 #28984B

square

#283D98 #982875 #988328 #28984B

split-complementary

#283D98 #984B28 #759828

monochromatic

#0F1637 #1B2A68 #283D98 #3550C8 #647AD6

Accessibility & contrast

On white

9.50

#283D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#283D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D98

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D98	#FFFFFF	#000000	##FFFFFF
##283D98	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9B

Deuteranopia (green-blind)

#004196

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #283d98;
/* rgb */ color: rgb(40, 61, 152);
/* oklch */ color: oklch(40.2% 0.151 268.7);

Tailwind

colors: {
  custom: {
    50: '#7272b7',
    500: '#283d98',
    950: '#000000',
  },
}

SCSS

$custom: #283d98;
$custom-light: #7272b7;
$custom-dark: #000000;

JSON

{
  "hex": "#283d98",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 152
  },
  "hsl": {
    "h": 228.75,
    "s": 58.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40211,
    "c": 0.15074,
    "h": 268.7
  },
  "luminance": 0.06056
}

Semantic roles & 50–950 ramp

primary

#283D98

secondary

#BCAB60

accent

#C446E2

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283D98

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

Preview Lab → · Contrast checker → · Palette generator →