#1C4690#1C4690

#1C4690 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.0% C 0.131 H 260.8°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#1C4690
RGB	rgb(28, 70, 144)
HSL	hsl(218, 67%, 34%)
HSV	hsv(218, 81%, 56%)
CMYK	cmyk(80.6%, 51.4%, 0%, 43.5%)
CIE-LAB	lab(30.97, 13.89, -45.06)
CIE-LCH	lch(30.97, 47.15, 287.14°)
OKLab	oklab(40.95% -0.021 -0.1297)
OKLCH	oklch(40.95% 0.131 260.8)
XYZ	xyz(7.7013, 6.6399, 27.2559)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4690 #90661C

analogous

#1C8090 #1C4690 #2C1C90

triadic

#1C4690 #901C46 #46901C

tetradic

#1C4690 #901C80 #90661C #1C902C

square

#1C4690 #901C80 #90661C #1C902C

split-complementary

#1C4690 #902C1C #80901C

monochromatic

#08142A #122D5D #1C4690 #265FC3 #4A7FDC

Accessibility & contrast

On white

9.02

#1C4690 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1C4690 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4690

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4690	#FFFFFF	#000000	##FFFFFF
##1C4690	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184E93

Deuteranopia (green-blind)

#00448F

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c4690;
/* rgb */ color: rgb(28, 70, 144);
/* oklch */ color: oklch(41.0% 0.131 260.8);

Tailwind

colors: {
  custom: {
    50: '#6c78b1',
    500: '#1c4690',
    950: '#000000',
  },
}

SCSS

$custom: #1c4690;
$custom-light: #6c78b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4690",
  "rgb": {
    "r": 28,
    "g": 70,
    "b": 144
  },
  "hsl": {
    "h": 218.276,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40953,
    "c": 0.13136,
    "h": 260.8
  },
  "luminance": 0.06641
}

Semantic roles & 50–950 ramp

primary

#1C4690

secondary

#BE944A

accent

#AC3DEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4690

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

Preview Lab → · Contrast checker → · Palette generator →