#1839A1#1839A1

#1839A1 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.172 H 265.3°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#1839A1
RGB	rgb(24, 57, 161)
HSL	hsl(226, 74%, 36%)
HSV	hsv(226, 85%, 63%)
CMYK	cmyk(85.1%, 64.6%, 0%, 36.9%)
CIE-LAB	lab(28.62, 29.22, -59.25)
CIE-LCH	lch(28.62, 66.06, 296.26°)
OKLab	oklab(39.58% -0.0142 -0.1716)
OKLCH	oklch(39.58% 0.172 265.3)
XYZ	xyz(8.2706, 5.6926, 34.3742)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1839A1 #A18018

analogous

#187EA1 #1839A1 #3B18A1

triadic

#1839A1 #A11839 #39A118

tetradic

#1839A1 #A1187E #A18018 #18A13B

square

#1839A1 #A1187E #A18018 #18A13B

split-complementary

#1839A1 #A13B18 #7EA118

monochromatic

#081336 #10266C #1839A1 #204CD6 #4F73E5

Accessibility & contrast

On white

9.82

#1839A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1839A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1839A1

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1839A1	#FFFFFF	#000000	##FFFFFF
##1839A1	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA4

Deuteranopia (green-blind)

#003D9F

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1839a1;
/* rgb */ color: rgb(24, 57, 161);
/* oklch */ color: oklch(39.6% 0.172 265.3);

Tailwind

colors: {
  custom: {
    50: '#706fbe',
    500: '#1839a1',
    950: '#000000',
  },
}

SCSS

$custom: #1839a1;
$custom-light: #706fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#1839a1",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 161
  },
  "hsl": {
    "h": 225.547,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39583,
    "c": 0.17219,
    "h": 265.3
  },
  "luminance": 0.05694
}

Semantic roles & 50–950 ramp

primary

#1839A1

secondary

#C7AA4E

accent

#C437F1

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1839A1

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

Preview Lab → · Contrast checker → · Palette generator →