#1C4899#1C4899

#1C4899 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.1% C 0.141 H 261.3°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C4899
RGB	rgb(28, 72, 153)
HSL	hsl(219, 69%, 35%)
HSV	hsv(219, 82%, 60%)
CMYK	cmyk(81.7%, 52.9%, 0%, 40%)
CIE-LAB	lab(32.21, 16.16, -48.54)
CIE-LCH	lch(32.21, 51.16, 288.41°)
OKLab	oklab(42.11% -0.0214 -0.1399)
OKLCH	oklch(42.11% 0.141 261.3)
XYZ	xyz(8.5439, 7.1805, 31.0665)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4899 #996D1C

analogous

#1C8699 #1C4899 #2E1C99

triadic

#1C4899 #991C48 #48991C

tetradic

#1C4899 #991C86 #996D1C #1C992E

square

#1C4899 #991C86 #996D1C #1C992E

split-complementary

#1C4899 #992E1C #86991C

monochromatic

#091732 #133065 #1C4899 #2560CD #5083DF

Accessibility & contrast

On white

8.62

#1C4899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1C4899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4899

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4899	#FFFFFF	#000000	##FFFFFF
##1C4899	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F529C

Deuteranopia (green-blind)

#004697

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4899;
/* rgb */ color: rgb(28, 72, 153);
/* oklch */ color: oklch(42.1% 0.141 261.3);

Tailwind

colors: {
  custom: {
    50: '#6e7ab8',
    500: '#1c4899',
    950: '#000000',
  },
}

SCSS

$custom: #1c4899;
$custom-light: #6e7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4899",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 153
  },
  "hsl": {
    "h": 218.88,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.4211,
    "c": 0.14149,
    "h": 261.3
  },
  "luminance": 0.07182
}

Semantic roles & 50–950 ramp

primary

#1C4899

secondary

#C2994F

accent

#AE3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4899

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

Preview Lab → · Contrast checker → · Palette generator →