#2839A4#2839A4

#2839A4 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.5% C 0.172 H 269.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#2839A4
RGB	rgb(40, 57, 164)
HSL	hsl(232, 61%, 40%)
HSV	hsv(232, 76%, 64%)
CMYK	cmyk(75.6%, 65.2%, 0%, 35.7%)
CIE-LAB	lab(29.56, 31.85, -59.51)
CIE-LCH	lch(29.56, 67.49, 298.16°)
OKLab	oklab(40.54% -0.0008 -0.1721)
OKLCH	oklch(40.54% 0.172 269.7)
XYZ	xyz(9.0367, 6.0567, 35.8076)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2839A4 #A49328

analogous

#2877A4 #2839A4 #5528A4

triadic

#2839A4 #A42839 #39A428

tetradic

#2839A4 #A42877 #A49328 #28A455

square

#2839A4 #A42877 #A49328 #28A455

split-complementary

#2839A4 #A45528 #77A428

monochromatic

#101742 #1C2873 #2839A4 #3A4FCF #6B7BDB

Accessibility & contrast

On white

9.50

#2839A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#2839A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2839A4

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2839A4	#FFFFFF	#000000	##FFFFFF
##2839A4	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2839a4;
/* rgb */ color: rgb(40, 57, 164);
/* oklch */ color: oklch(40.5% 0.172 269.7);

Tailwind

colors: {
  custom: {
    50: '#756fc0',
    500: '#2839a4',
    950: '#000000',
  },
}

SCSS

$custom: #2839a4;
$custom-light: #756fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2839a4",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 164
  },
  "hsl": {
    "h": 231.774,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.40536,
    "c": 0.17207,
    "h": 269.7
  },
  "luminance": 0.06058
}

Semantic roles & 50–950 ramp

primary

#2839A4

secondary

#C1B566

accent

#CE44E4

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2839A4

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

Preview Lab → · Contrast checker → · Palette generator →