#2838B1#2838B1

#2838B1 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.190 H 269.6°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#2838B1
RGB	rgb(40, 56, 177)
HSL	hsl(233, 63%, 43%)
HSV	hsv(233, 77%, 69%)
CMYK	cmyk(77.4%, 68.4%, 0%, 30.6%)
CIE-LAB	lab(30.53, 37.23, -65.71)
CIE-LCH	lch(30.53, 75.52, 299.54°)
OKLab	oklab(41.62% -0.0012 -0.1902)
OKLCH	oklch(41.62% 0.19 269.6)
XYZ	xyz(10.2223, 6.4527, 42.2932)
Luminance	0.0645 (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

#2838B1 #B1A128

analogous

#287CB1 #2838B1 #5D28B1

triadic

#2838B1 #B12838 #38B128

tetradic

#2838B1 #B1287C #B1A128 #28B15D

square

#2838B1 #B1287C #B1A128 #28B15D

split-complementary

#2838B1 #B15D28 #7CB128

monochromatic

#11184D #1D287F #2838B1 #4253D4 #7480E0

Accessibility & contrast

On white

9.17

#2838B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2838B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2838B1

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2838B1	#FFFFFF	#000000	##FFFFFF
##2838B1	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB5

Deuteranopia (green-blind)

#0041AF

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2838b1;
/* rgb */ color: rgb(40, 56, 177);
/* oklch */ color: oklch(41.6% 0.190 269.6);

Tailwind

colors: {
  custom: {
    50: '#796fc9',
    500: '#2838b1',
    950: '#000000',
  },
}

SCSS

$custom: #2838b1;
$custom-light: #796fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2838b1",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 177
  },
  "hsl": {
    "h": 232.993,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41615,
    "c": 0.19021,
    "h": 269.6
  },
  "luminance": 0.06454
}

Semantic roles & 50–950 ramp

primary

#2838B1

secondary

#C7BC6E

accent

#D342E6

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2838B1

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

Preview Lab → · Contrast checker → · Palette generator →