#283B98#283B98

#283B98 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.153 H 269.3°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#283B98
RGB	rgb(40, 59, 152)
HSL	hsl(230, 58%, 38%)
HSV	hsv(230, 74%, 60%)
CMYK	cmyk(73.7%, 61.2%, 0%, 40.4%)
CIE-LAB	lab(29.02, 26.03, -53.10)
CIE-LCH	lch(29.02, 59.14, 296.11°)
OKLab	oklab(39.82% -0.0019 -0.1533)
OKLCH	oklch(39.82% 0.153 269.3)
XYZ	xyz(8.1046, 5.8452, 30.4008)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283B98 #988528

analogous

#287398 #283B98 #4D2898

triadic

#283B98 #98283B #3B9828

tetradic

#283B98 #982873 #988528 #28984D

square

#283B98 #982873 #988528 #28984D

split-complementary

#283B98 #984D28 #739828

monochromatic

#0F1537 #1B2868 #283B98 #354EC8 #6478D6

Accessibility & contrast

On white

9.68

#283B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#283B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B98

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283B98	#FFFFFF	#000000	##FFFFFF
##283B98	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#003F96

Tritanopia (blue-blind)

#005263

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #283b98;
/* rgb */ color: rgb(40, 59, 152);
/* oklch */ color: oklch(39.8% 0.153 269.3);

Tailwind

colors: {
  custom: {
    50: '#7270b7',
    500: '#283b98',
    950: '#000000',
  },
}

SCSS

$custom: #283b98;
$custom-light: #7270b7;
$custom-dark: #000000;

JSON

{
  "hex": "#283b98",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 152
  },
  "hsl": {
    "h": 229.821,
    "s": 58.333,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39815,
    "c": 0.15328,
    "h": 269.3
  },
  "luminance": 0.05846
}

Semantic roles & 50–950 ramp

primary

#283B98

secondary

#BCAC60

accent

#C746E2

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283B98

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

Preview Lab → · Contrast checker → · Palette generator →