#283897#283897

#283897 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.156 H 270.1°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#283897
RGB	rgb(40, 56, 151)
HSL	hsl(231, 58%, 37%)
HSV	hsv(231, 74%, 59%)
CMYK	cmyk(73.5%, 62.9%, 0%, 40.8%)
CIE-LAB	lab(28.15, 27.66, -53.91)
CIE-LCH	lch(28.15, 60.59, 297.16°)
OKLab	oklab(39.15% 0.0003 -0.1557)
OKLCH	oklch(39.15% 0.156 270.1)
XYZ	xyz(7.8733, 5.5130, 29.9213)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283897 #978728

analogous

#287097 #283897 #4F2897

triadic

#283897 #972838 #389728

tetradic

#283897 #972870 #978728 #28974F

square

#283897 #972870 #978728 #28974F

split-complementary

#283897 #974F28 #709728

monochromatic

#0E1436 #1B2667 #283897 #354AC7 #6474D6

Accessibility & contrast

On white

9.99

#283897 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#283897 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283897

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283897	#FFFFFF	#000000	##FFFFFF
##283897	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489A

Deuteranopia (green-blind)

#003D95

Tritanopia (blue-blind)

#005062

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #283897;
/* rgb */ color: rgb(40, 56, 151);
/* oklch */ color: oklch(39.1% 0.156 270.1);

Tailwind

colors: {
  custom: {
    50: '#726eb6',
    500: '#283897',
    950: '#000000',
  },
}

SCSS

$custom: #283897;
$custom-light: #726eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#283897",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 151
  },
  "hsl": {
    "h": 231.351,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39145,
    "c": 0.15568,
    "h": 270.1
  },
  "luminance": 0.05514
}

Semantic roles & 50–950 ramp

primary

#283897

secondary

#BCAE5F

accent

#CB46E1

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283897

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

Preview Lab → · Contrast checker → · Palette generator →