#283C68#283C68

#283C68 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.081 H 264.3°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#283C68
RGB	rgb(40, 60, 104)
HSL	hsl(221, 44%, 28%)
HSV	hsv(221, 62%, 41%)
CMYK	cmyk(61.5%, 42.3%, 0%, 59.2%)
CIE-LAB	lab(25.81, 7.00, -28.22)
CIE-LCH	lch(25.81, 29.07, 283.93°)
OKLab	oklab(36.27% -0.008 -0.0801)
OKLCH	oklch(36.27% 0.081 264.3)
XYZ	xyz(4.9888, 4.6819, 13.7348)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C68 #685428

analogous

#285C68 #283C68 #342868

triadic

#283C68 #68283C #3C6828

tetradic

#283C68 #68285C #685428 #286834

square

#283C68 #68285C #685428 #286834

split-complementary

#283C68 #683428 #5C6828

monochromatic

#090D16 #17223C #283C68 #395594 #4F71BB

Accessibility & contrast

On white

10.84

#283C68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#283C68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C68

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C68	#FFFFFF	#000000	##FFFFFF
##283C68	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29406A

Deuteranopia (green-blind)

#213A67

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #283c68;
/* rgb */ color: rgb(40, 60, 104);
/* oklch */ color: oklch(36.3% 0.081 264.3);

Tailwind

colors: {
  custom: {
    50: '#687193',
    500: '#283c68',
    950: '#000000',
  },
}

SCSS

$custom: #283c68;
$custom-light: #687193;
$custom-dark: #000000;

JSON

{
  "hex": "#283c68",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 104
  },
  "hsl": {
    "h": 221.25,
    "s": 44.444,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36274,
    "c": 0.08053,
    "h": 264.3
  },
  "luminance": 0.04682
}

Semantic roles & 50–950 ramp

primary

#283C68

secondary

#9B8451

accent

#AC54D4

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #283C68

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

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