#283B95#283B95

#283B95 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.149 H 269.3°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#283B95
RGB	rgb(40, 59, 149)
HSL	hsl(230, 58%, 37%)
HSV	hsv(230, 73%, 58%)
CMYK	cmyk(73.2%, 60.4%, 0%, 41.6%)
CIE-LAB	lab(28.77, 24.89, -51.67)
CIE-LCH	lch(28.77, 57.36, 295.72°)
OKLab	oklab(39.55% -0.0019 -0.1491)
OKLCH	oklch(39.55% 0.149 269.3)
XYZ	xyz(7.8620, 5.7482, 29.1231)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283B95 #958228

analogous

#287295 #283B95 #4B2895

triadic

#283B95 #95283B #3B9528

tetradic

#283B95 #952872 #958228 #28954B

square

#283B95 #952872 #958228 #28954B

split-complementary

#283B95 #954B28 #729528

monochromatic

#0E1535 #1B2865 #283B95 #354EC5 #6276D5

Accessibility & contrast

On white

9.77

#283B95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#283B95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B95

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283B95	#FFFFFF	#000000	##FFFFFF
##283B95	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004998

Deuteranopia (green-blind)

#003F93

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #283b95;
/* rgb */ color: rgb(40, 59, 149);
/* oklch */ color: oklch(39.6% 0.149 269.3);

Tailwind

colors: {
  custom: {
    50: '#7270b5',
    500: '#283b95',
    950: '#000000',
  },
}

SCSS

$custom: #283b95;
$custom-light: #7270b5;
$custom-dark: #000000;

JSON

{
  "hex": "#283b95",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 149
  },
  "hsl": {
    "h": 229.541,
    "s": 57.672,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39551,
    "c": 0.1491,
    "h": 269.3
  },
  "luminance": 0.05749
}

Semantic roles & 50–950 ramp

primary

#283B95

secondary

#BBAB5E

accent

#C647E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283B95

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

Preview Lab → · Contrast checker → · Palette generator →