#283AA2#283AA2

#283AA2 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.168 H 269.5°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#283AA2
RGB	rgb(40, 58, 162)
HSL	hsl(231, 60%, 40%)
HSV	hsv(231, 75%, 64%)
CMYK	cmyk(75.3%, 64.2%, 0%, 36.5%)
CIE-LAB	lab(29.63, 30.45, -58.18)
CIE-LCH	lch(29.63, 65.67, 297.63°)
OKLab	oklab(40.53% -0.0014 -0.1682)
OKLCH	oklch(40.53% 0.168 269.5)
XYZ	xyz(8.9075, 6.0849, 34.8805)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283AA2 #A29028

analogous

#2877A2 #283AA2 #5328A2

triadic

#283AA2 #A2283A #3AA228

tetradic

#283AA2 #A22877 #A29028 #28A253

square

#283AA2 #A22877 #A29028 #28A253

split-complementary

#283AA2 #A25328 #77A228

monochromatic

#101740 #1C2871 #283AA2 #394FCE #6A7BDA

Accessibility & contrast

On white

9.47

#283AA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#283AA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283AA2

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283AA2	#FFFFFF	#000000	##FFFFFF
##283AA2	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA5

Deuteranopia (green-blind)

#0040A0

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #283aa2;
/* rgb */ color: rgb(40, 58, 162);
/* oklch */ color: oklch(40.5% 0.168 269.5);

Tailwind

colors: {
  custom: {
    50: '#7570be',
    500: '#283aa2',
    950: '#000000',
  },
}

SCSS

$custom: #283aa2;
$custom-light: #7570be;
$custom-dark: #000000;

JSON

{
  "hex": "#283aa2",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 162
  },
  "hsl": {
    "h": 231.148,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40532,
    "c": 0.1682,
    "h": 269.5
  },
  "luminance": 0.06086
}

Semantic roles & 50–950 ramp

primary

#283AA2

secondary

#C1B365

accent

#CC44E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #283AA2

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

Preview Lab → · Contrast checker → · Palette generator →