#283D94#283D94

#283D94 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.145 H 268.6°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#283D94
RGB	rgb(40, 61, 148)
HSL	hsl(228, 57%, 37%)
HSV	hsv(228, 73%, 58%)
CMYK	cmyk(73%, 58.8%, 0%, 42%)
CIE-LAB	lab(29.22, 23.15, -50.32)
CIE-LCH	lch(29.22, 55.39, 294.71°)
OKLab	oklab(39.87% -0.0035 -0.1451)
OKLCH	oklch(39.87% 0.145 268.6)
XYZ	xyz(7.8873, 5.9259, 28.7394)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D94 #947F28

analogous

#287394 #283D94 #492894

triadic

#283D94 #94283D #3D9428

tetradic

#283D94 #942873 #947F28 #289449

square

#283D94 #942873 #947F28 #289449

split-complementary

#283D94 #944928 #739428

monochromatic

#0E1534 #1B2964 #283D94 #3551C4 #6278D5

Accessibility & contrast

On white

9.61

#283D94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#283D94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D94

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D94	#FFFFFF	#000000	##FFFFFF
##283D94	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A97

Deuteranopia (green-blind)

#004092

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283d94;
/* rgb */ color: rgb(40, 61, 148);
/* oklch */ color: oklch(39.9% 0.145 268.6);

Tailwind

colors: {
  custom: {
    50: '#7172b4',
    500: '#283d94',
    950: '#000000',
  },
}

SCSS

$custom: #283d94;
$custom-light: #7172b4;
$custom-dark: #000000;

JSON

{
  "hex": "#283d94",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 148
  },
  "hsl": {
    "h": 228.333,
    "s": 57.447,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39866,
    "c": 0.14512,
    "h": 268.6
  },
  "luminance": 0.05927
}

Semantic roles & 50–950 ramp

primary

#283D94

secondary

#BAA85E

accent

#C347E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283D94

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

Preview Lab → · Contrast checker → · Palette generator →