#2833B0#2833B0

#2833B0 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.7% C 0.194 H 270.4°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#2833B0
RGB	rgb(40, 51, 176)
HSL	hsl(235, 63%, 42%)
HSV	hsv(235, 77%, 69%)
CMYK	cmyk(77.3%, 71%, 0%, 31%)
CIE-LAB	lab(29.29, 39.97, -67.14)
CIE-LCH	lch(29.29, 78.14, 300.77°)
OKLab	oklab(40.69% 0.0014 -0.1944)
OKLCH	oklch(40.69% 0.194 270.4)
XYZ	xyz(9.8927, 5.9523, 41.6934)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2833B0 #B0A528

analogous

#2877B0 #2833B0 #6128B0

triadic

#2833B0 #B02833 #33B028

tetradic

#2833B0 #B02877 #B0A528 #28B061

square

#2833B0 #B02877 #B0A528 #28B061

split-complementary

#2833B0 #B06128 #77B028

monochromatic

#11164C #1D257E #2833B0 #414DD4 #737CDF

Accessibility & contrast

On white

9.59

#2833B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2833B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2833B0

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2833B0	#FFFFFF	#000000	##FFFFFF
##2833B0	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2833b0;
/* rgb */ color: rgb(40, 51, 176);
/* oklch */ color: oklch(40.7% 0.194 270.4);

Tailwind

colors: {
  custom: {
    50: '#796bc9',
    500: '#2833b0',
    950: '#000000',
  },
}

SCSS

$custom: #2833b0;
$custom-light: #796bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2833b0",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 176
  },
  "hsl": {
    "h": 235.147,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40692,
    "c": 0.19441,
    "h": 270.4
  },
  "luminance": 0.05953
}

Semantic roles & 50–950 ramp

primary

#2833B0

secondary

#C6BF6D

accent

#D942E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2833B0

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

Preview Lab → · Contrast checker → · Palette generator →