#2833A8#2833A8

#2833A8 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.184 H 270.7°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#2833A8
RGB	rgb(40, 51, 168)
HSL	hsl(235, 62%, 41%)
HSV	hsv(235, 76%, 66%)
CMYK	cmyk(76.2%, 69.6%, 0%, 34.1%)
CIE-LAB	lab(28.50, 37.14, -63.65)
CIE-LCH	lch(28.50, 73.70, 300.26°)
OKLab	oklab(39.88% 0.0023 -0.1842)
OKLCH	oklch(39.88% 0.184 270.7)
XYZ	xyz(9.1244, 5.6449, 37.6469)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2833A8 #A89D28

analogous

#2873A8 #2833A8 #5D28A8

triadic

#2833A8 #A82833 #33A828

tetradic

#2833A8 #A82873 #A89D28 #28A85D

square

#2833A8 #A82873 #A89D28 #28A85D

split-complementary

#2833A8 #A85D28 #73A828

monochromatic

#101545 #1C2477 #2833A8 #3D49D1 #6E77DC

Accessibility & contrast

On white

9.86

#2833A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2833A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2833A8

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2833A8	#FFFFFF	#000000	##FFFFFF
##2833A8	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AC

Deuteranopia (green-blind)

#003DA6

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2833a8;
/* rgb */ color: rgb(40, 51, 168);
/* oklch */ color: oklch(39.9% 0.184 270.7);

Tailwind

colors: {
  custom: {
    50: '#776bc3',
    500: '#2833a8',
    950: '#000000',
  },
}

SCSS

$custom: #2833a8;
$custom-light: #776bc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2833a8",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 168
  },
  "hsl": {
    "h": 234.844,
    "s": 61.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39881,
    "c": 0.18423,
    "h": 270.7
  },
  "luminance": 0.05646
}

Semantic roles & 50–950 ramp

primary

#2833A8

secondary

#C3BB69

accent

#D743E5

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2833A8

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

Preview Lab → · Contrast checker → · Palette generator →