#283D95#283D95

#283D95 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.147 H 268.6°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#283D95
RGB	rgb(40, 61, 149)
HSL	hsl(228, 58%, 37%)
HSV	hsv(228, 73%, 58%)
CMYK	cmyk(73.2%, 59.1%, 0%, 41.6%)
CIE-LAB	lab(29.31, 23.54, -50.80)
CIE-LCH	lch(29.31, 55.99, 294.86°)
OKLab	oklab(39.95% -0.0035 -0.1465)
OKLCH	oklch(39.95% 0.147 268.6)
XYZ	xyz(7.9668, 5.9577, 29.1580)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D95 #958028

analogous

#287495 #283D95 #492895

triadic

#283D95 #95283D #3D9528

tetradic

#283D95 #952874 #958028 #289549

square

#283D95 #952874 #958028 #289549

split-complementary

#283D95 #954928 #749528

monochromatic

#0E1535 #1B2965 #283D95 #3551C5 #6278D5

Accessibility & contrast

On white

9.58

#283D95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#283D95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D95

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D95	#FFFFFF	#000000	##FFFFFF
##283D95	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A98

Deuteranopia (green-blind)

#004093

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283d95;
/* rgb */ color: rgb(40, 61, 149);
/* oklch */ color: oklch(40.0% 0.147 268.6);

Tailwind

colors: {
  custom: {
    50: '#7272b5',
    500: '#283d95',
    950: '#000000',
  },
}

SCSS

$custom: #283d95;
$custom-light: #7272b5;
$custom-dark: #000000;

JSON

{
  "hex": "#283d95",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 149
  },
  "hsl": {
    "h": 228.44,
    "s": 57.672,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39952,
    "c": 0.14653,
    "h": 268.6
  },
  "luminance": 0.05959
}

Semantic roles & 50–950 ramp

primary

#283D95

secondary

#BBA95E

accent

#C347E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283D95

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

Preview Lab → · Contrast checker → · Palette generator →