#283E69#283E69

#283E69 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.079 H 262.6°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#283E69
RGB	rgb(40, 62, 105)
HSL	hsl(220, 45%, 28%)
HSV	hsv(220, 62%, 41%)
CMYK	cmyk(61.9%, 41%, 0%, 58.8%)
CIE-LAB	lab(26.49, 6.00, -27.77)
CIE-LCH	lch(26.49, 28.42, 282.19°)
OKLab	oklab(36.82% -0.0102 -0.0788)
OKLCH	oklch(36.82% 0.079 262.6)
XYZ	xyz(5.1466, 4.9159, 14.0395)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283E69 #695328

analogous

#285E69 #283E69 #322869

triadic

#283E69 #69283E #3E6928

tetradic

#283E69 #69285E #695328 #286932

square

#283E69 #69285E #695328 #286932

split-complementary

#283E69 #693228 #5E6928

monochromatic

#080D16 #17243D #283E69 #395895 #4F74BC

Accessibility & contrast

On white

10.59

#283E69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#283E69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283E69

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283E69	#FFFFFF	#000000	##FFFFFF
##283E69	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C426B

Deuteranopia (green-blind)

#233C68

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #283e69;
/* rgb */ color: rgb(40, 62, 105);
/* oklch */ color: oklch(36.8% 0.079 262.6);

Tailwind

colors: {
  custom: {
    50: '#687294',
    500: '#283e69',
    950: '#000000',
  },
}

SCSS

$custom: #283e69;
$custom-light: #687294;
$custom-dark: #000000;

JSON

{
  "hex": "#283e69",
  "rgb": {
    "r": 40,
    "g": 62,
    "b": 105
  },
  "hsl": {
    "h": 219.692,
    "s": 44.828,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36824,
    "c": 0.07947,
    "h": 262.6
  },
  "luminance": 0.04916
}

Semantic roles & 50–950 ramp

primary

#283E69

secondary

#9C8251

accent

#A953D5

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #283E69

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

Preview Lab → · Contrast checker → · Palette generator →