#1C3DA8#1C3DA8

#1C3DA8 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.176 H 265.6°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#1C3DA8
RGB	rgb(28, 61, 168)
HSL	hsl(226, 71%, 38%)
HSV	hsv(226, 83%, 66%)
CMYK	cmyk(83.3%, 63.7%, 0%, 34.1%)
CIE-LAB	lab(30.43, 29.57, -60.51)
CIE-LCH	lch(30.43, 67.35, 296.05°)
OKLab	oklab(41.15% -0.0136 -0.1752)
OKLCH	oklch(41.15% 0.176 265.6)
XYZ	xyz(9.2130, 6.4104, 37.7900)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3DA8 #A8871C

analogous

#1C83A8 #1C3DA8 #411CA8

triadic

#1C3DA8 #A81C3D #3DA81C

tetradic

#1C3DA8 #A81C83 #A8871C #1CA841

square

#1C3DA8 #A81C83 #A8871C #1CA841

split-complementary

#1C3DA8 #A8411C #83A81C

monochromatic

#0B173F #132A74 #1C3DA8 #2651DB #5B7BE4

Accessibility & contrast

On white

9.20

#1C3DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1C3DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3DA8

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3DA8	#FFFFFF	#000000	##FFFFFF
##1C3DA8	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0041A6

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c3da8;
/* rgb */ color: rgb(28, 61, 168);
/* oklch */ color: oklch(41.1% 0.176 265.6);

Tailwind

colors: {
  custom: {
    50: '#7272c3',
    500: '#1c3da8',
    950: '#000000',
  },
}

SCSS

$custom: #1c3da8;
$custom-light: #7272c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3da8",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 168
  },
  "hsl": {
    "h": 225.857,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.41148,
    "c": 0.17571,
    "h": 265.6
  },
  "luminance": 0.06412
}

Semantic roles & 50–950 ramp

primary

#1C3DA8

secondary

#C7AD58

accent

#C43AEE

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#090713

muted

#7B7A82

Preview Lab

Preview with #1C3DA8

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

Preview Lab → · Contrast checker → · Palette generator →