#1C439A#1C439A

#1C439A is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.1% C 0.149 H 263.2°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C439A
RGB	rgb(28, 67, 154)
HSL	hsl(221, 69%, 36%)
HSV	hsv(221, 82%, 60%)
CMYK	cmyk(81.8%, 56.5%, 0%, 39.6%)
CIE-LAB	lab(30.86, 19.98, -51.34)
CIE-LCH	lch(30.86, 55.09, 291.27°)
OKLab	oklab(41.11% -0.0177 -0.1482)
OKLCH	oklch(41.11% 0.149 263.2)
XYZ	xyz(8.3167, 6.5933, 31.3999)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C439A #9A731C

analogous

#1C829A #1C439A #341C9A

triadic

#1C439A #9A1C43 #439A1C

tetradic

#1C439A #9A1C82 #9A731C #1C9A34

square

#1C439A #9A1C82 #9A731C #1C9A34

split-complementary

#1C439A #9A341C #829A1C

monochromatic

#091632 #132C66 #1C439A #255ACE #517DDF

Accessibility & contrast

On white

9.06

#1C439A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1C439A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C439A

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C439A	#FFFFFF	#000000	##FFFFFF
##1C439A	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9D

Deuteranopia (green-blind)

#004398

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c439a;
/* rgb */ color: rgb(28, 67, 154);
/* oklch */ color: oklch(41.1% 0.149 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e76b8',
    500: '#1c439a',
    950: '#000000',
  },
}

SCSS

$custom: #1c439a;
$custom-light: #6e76b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c439a",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 154
  },
  "hsl": {
    "h": 221.429,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41108,
    "c": 0.14925,
    "h": 263.2
  },
  "luminance": 0.06594
}

Semantic roles & 50–950 ramp

primary

#1C439A

secondary

#C29F50

accent

#B53CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C439A

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

Preview Lab → · Contrast checker → · Palette generator →