#1C4E99#1C4E99

#1C4E99 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.5% C 0.134 H 258.8°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E99
RGB	rgb(28, 78, 153)
HSL	hsl(216, 69%, 35%)
HSV	hsv(216, 82%, 60%)
CMYK	cmyk(81.7%, 49%, 0%, 40%)
CIE-LAB	lab(33.97, 12.09, -45.70)
CIE-LCH	lch(33.97, 47.27, 284.82°)
OKLab	oklab(43.46% -0.0261 -0.1314)
OKLCH	oklch(43.46% 0.134 258.8)
XYZ	xyz(8.9509, 7.9945, 31.2022)
Luminance	0.0800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E99 #99671C

analogous

#1C8C99 #1C4E99 #281C99

triadic

#1C4E99 #991C4E #4E991C

tetradic

#1C4E99 #991C8C #99671C #1C9928

square

#1C4E99 #991C8C #99671C #1C9928

split-complementary

#1C4E99 #99281C #8C991C

monochromatic

#091932 #133465 #1C4E99 #2568CD #5089DF

Accessibility & contrast

On white

8.08

#1C4E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1C4E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E99

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E99	#FFFFFF	#000000	##FFFFFF
##1C4E99	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23569C

Deuteranopia (green-blind)

#004B98

Tritanopia (blue-blind)

#00606C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c4e99;
/* rgb */ color: rgb(28, 78, 153);
/* oklch */ color: oklch(43.5% 0.134 258.8);

Tailwind

colors: {
  custom: {
    50: '#6d7eb8',
    500: '#1c4e99',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e99;
$custom-light: #6d7eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e99",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 153
  },
  "hsl": {
    "h": 216,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.43455,
    "c": 0.13395,
    "h": 258.8
  },
  "luminance": 0.07996
}

Semantic roles & 50–950 ramp

primary

#1C4E99

secondary

#C2944F

accent

#A53CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1C4E99

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

Preview Lab → · Contrast checker → · Palette generator →