#283EAC#283EAC

#283EAC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.177 H 268.6°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#283EAC
RGB	rgb(40, 62, 172)
HSL	hsl(230, 62%, 42%)
HSV	hsv(230, 77%, 67%)
CMYK	cmyk(76.7%, 64%, 0%, 32.5%)
CIE-LAB	lab(31.52, 31.55, -61.10)
CIE-LCH	lch(31.52, 68.76, 297.31°)
OKLab	oklab(42.2% -0.0043 -0.1767)
OKLCH	oklch(42.2% 0.177 268.6)
XYZ	xyz(10.0415, 6.8738, 39.8193)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283EAC #AC9628

analogous

#2880AC #283EAC #5428AC

triadic

#283EAC #AC283E #3EAC28

tetradic

#283EAC #AC2880 #AC9628 #28AC54

square

#283EAC #AC2880 #AC9628 #28AC54

split-complementary

#283EAC #AC5428 #80AC28

monochromatic

#111A49 #1C2C7A #283EAC #3F57D2 #7183DE

Accessibility & contrast

On white

8.84

#283EAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#283EAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283EAC

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283EAC	#FFFFFF	#000000	##FFFFFF
##283EAC	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #283eac;
/* rgb */ color: rgb(40, 62, 172);
/* oklch */ color: oklch(42.2% 0.177 268.6);

Tailwind

colors: {
  custom: {
    50: '#7773c6',
    500: '#283eac',
    950: '#000000',
  },
}

SCSS

$custom: #283eac;
$custom-light: #7773c6;
$custom-dark: #000000;

JSON

{
  "hex": "#283eac",
  "rgb": {
    "r": 40,
    "g": 62,
    "b": 172
  },
  "hsl": {
    "h": 230,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42199,
    "c": 0.17673,
    "h": 268.6
  },
  "luminance": 0.06875
}

Semantic roles & 50–950 ramp

primary

#283EAC

secondary

#C5B66B

accent

#CA42E5

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #283EAC

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

Preview Lab → · Contrast checker → · Palette generator →