#283B62#283B62

#283B62 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.6% C 0.072 H 263.5°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#283B62
RGB	rgb(40, 59, 98)
HSL	hsl(220, 42%, 27%)
HSV	hsv(220, 59%, 38%)
CMYK	cmyk(59.2%, 39.8%, 0%, 61.6%)
CIE-LAB	lab(25.14, 5.45, -25.41)
CIE-LCH	lch(25.14, 25.99, 282.11°)
OKLab	oklab(35.64% -0.0082 -0.0719)
OKLCH	oklch(35.64% 0.072 263.5)
XYZ	xyz(4.6429, 4.4605, 12.1692)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283B62 #624F28

analogous

#285862 #283B62 #322862

triadic

#283B62 #62283B #3B6228

tetradic

#283B62 #622858 #624F28 #286232

square

#283B62 #622858 #624F28 #286232

split-complementary

#283B62 #623228 #586228

monochromatic

#090D16 #162137 #283B62 #3A558D #4E70B7

Accessibility & contrast

On white

11.10

#283B62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#283B62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B62

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283B62	#FFFFFF	#000000	##FFFFFF
##283B62	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3F64

Deuteranopia (green-blind)

#243961

Tritanopia (blue-blind)

#054449

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283b62;
/* rgb */ color: rgb(40, 59, 98);
/* oklch */ color: oklch(35.6% 0.072 263.5);

Tailwind

colors: {
  custom: {
    50: '#67708f',
    500: '#283b62',
    950: '#000000',
  },
}

SCSS

$custom: #283b62;
$custom-light: #67708f;
$custom-dark: #000000;

JSON

{
  "hex": "#283b62",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 98
  },
  "hsl": {
    "h": 220.345,
    "s": 42.029,
    "l": 27.059
  },
  "oklch": {
    "l": 0.3564,
    "c": 0.07239,
    "h": 263.5
  },
  "luminance": 0.04461
}

Semantic roles & 50–950 ramp

primary

#283B62

secondary

#957F51

accent

#A956D2

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #283B62

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

Preview Lab → · Contrast checker → · Palette generator →