#283F95#283F95

#283F95 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.144 H 268.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#283F95
RGB	rgb(40, 63, 149)
HSL	hsl(227, 58%, 37%)
HSV	hsv(227, 73%, 58%)
CMYK	cmyk(73.2%, 57.7%, 0%, 41.6%)
CIE-LAB	lab(29.85, 22.18, -49.91)
CIE-LCH	lch(29.85, 54.62, 293.96°)
OKLab	oklab(40.36% -0.0051 -0.1439)
OKLCH	oklch(40.36% 0.144 268)
XYZ	xyz(8.0755, 6.1752, 29.1943)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F95 #957E28

analogous

#287695 #283F95 #472895

triadic

#283F95 #95283F #3F9528

tetradic

#283F95 #952876 #957E28 #289547

square

#283F95 #952876 #957E28 #289547

split-complementary

#283F95 #954728 #769528

monochromatic

#0E1635 #1B2B65 #283F95 #3553C5 #627BD5

Accessibility & contrast

On white

9.40

#283F95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#283F95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F95

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F95	#FFFFFF	#000000	##FFFFFF
##283F95	1.00	9.40	2.24	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C98

Deuteranopia (green-blind)

#004193

Tritanopia (blue-blind)

#005463

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #283f95;
/* rgb */ color: rgb(40, 63, 149);
/* oklch */ color: oklch(40.4% 0.144 268.0);

Tailwind

colors: {
  custom: {
    50: '#7173b5',
    500: '#283f95',
    950: '#000000',
  },
}

SCSS

$custom: #283f95;
$custom-light: #7173b5;
$custom-dark: #000000;

JSON

{
  "hex": "#283f95",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 149
  },
  "hsl": {
    "h": 227.339,
    "s": 57.672,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40359,
    "c": 0.14395,
    "h": 268
  },
  "luminance": 0.06176
}

Semantic roles & 50–950 ramp

primary

#283F95

secondary

#BBA75E

accent

#C047E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #283F95

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

Preview Lab → · Contrast checker → · Palette generator →