#2833A3#2833A3

#2833A3 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.4% C 0.178 H 270.9°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#2833A3
RGB	rgb(40, 51, 163)
HSL	hsl(235, 61%, 40%)
HSV	hsv(235, 75%, 64%)
CMYK	cmyk(75.5%, 68.7%, 0%, 36.1%)
CIE-LAB	lab(28.01, 35.34, -61.43)
CIE-LCH	lch(28.01, 70.87, 299.91°)
OKLab	oklab(39.38% 0.0029 -0.1777)
OKLCH	oklch(39.38% 0.178 270.9)
XYZ	xyz(8.6675, 5.4622, 35.2407)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2833A3 #A39828

analogous

#2871A3 #2833A3 #5A28A3

triadic

#2833A3 #A32833 #33A328

tetradic

#2833A3 #A32871 #A39828 #28A35A

square

#2833A3 #A32871 #A39828 #28A35A

split-complementary

#2833A3 #A35A28 #71A328

monochromatic

#101441 #1C2472 #2833A3 #3A47CF #6B75DB

Accessibility & contrast

On white

10.04

#2833A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2833A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2833A3

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2833A3	#FFFFFF	#000000	##FFFFFF
##2833A3	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A6

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2833a3;
/* rgb */ color: rgb(40, 51, 163);
/* oklch */ color: oklch(39.4% 0.178 270.9);

Tailwind

colors: {
  custom: {
    50: '#766bbf',
    500: '#2833a3',
    950: '#000000',
  },
}

SCSS

$custom: #2833a3;
$custom-light: #766bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2833a3",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 163
  },
  "hsl": {
    "h": 234.634,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39382,
    "c": 0.17776,
    "h": 270.9
  },
  "luminance": 0.05463
}

Semantic roles & 50–950 ramp

primary

#2833A3

secondary

#C1B966

accent

#D544E4

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2833A3

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

Preview Lab → · Contrast checker → · Palette generator →