#1C4890#1C4890

#1C4890 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.4% C 0.129 H 259.9°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C4890
RGB	rgb(28, 72, 144)
HSL	hsl(217, 67%, 34%)
HSV	hsv(217, 81%, 56%)
CMYK	cmyk(80.6%, 50%, 0%, 43.5%)
CIE-LAB	lab(31.57, 12.52, -44.10)
CIE-LCH	lch(31.57, 45.85, 285.85°)
OKLab	oklab(41.41% -0.0226 -0.1268)
OKLCH	oklch(41.41% 0.129 259.9)
XYZ	xyz(7.8285, 6.8943, 27.2983)
Luminance	0.0689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4890 #90641C

analogous

#1C8290 #1C4890 #2A1C90

triadic

#1C4890 #901C48 #48901C

tetradic

#1C4890 #901C82 #90641C #1C902A

square

#1C4890 #901C82 #90641C #1C902A

split-complementary

#1C4890 #902A1C #82901C

monochromatic

#08152A #122E5D #1C4890 #2662C3 #4A82DC

Accessibility & contrast

On white

8.83

#1C4890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1C4890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4890

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4890	#FFFFFF	#000000	##FFFFFF
##1C4890	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5093

Deuteranopia (green-blind)

#00458F

Tritanopia (blue-blind)

#005965

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4890;
/* rgb */ color: rgb(28, 72, 144);
/* oklch */ color: oklch(41.4% 0.129 259.9);

Tailwind

colors: {
  custom: {
    50: '#6b7ab1',
    500: '#1c4890',
    950: '#000000',
  },
}

SCSS

$custom: #1c4890;
$custom-light: #6b7ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4890",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 144
  },
  "hsl": {
    "h": 217.241,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41407,
    "c": 0.12882,
    "h": 259.9
  },
  "luminance": 0.06895
}

Semantic roles & 50–950 ramp

primary

#1C4890

secondary

#BE924A

accent

#A93DEA

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4890

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

Preview Lab → · Contrast checker → · Palette generator →