#1C3D8D#1C3D8D

#1C3D8D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.139 H 264.0°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D8D
RGB	rgb(28, 61, 141)
HSL	hsl(222, 67%, 33%)
HSV	hsv(222, 80%, 55%)
CMYK	cmyk(80.1%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(28.13, 18.90, -47.82)
CIE-LCH	lch(28.13, 51.41, 291.56°)
OKLab	oklab(38.72% -0.0144 -0.1379)
OKLCH	oklch(38.72% 0.139 264)
XYZ	xyz(6.9536, 5.5066, 25.8905)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D8D #8D6C1C

analogous

#1C758D #1C3D8D #331C8D

triadic

#1C3D8D #8D1C3D #3D8D1C

tetradic

#1C3D8D #8D1C75 #8D6C1C #1C8D33

square

#1C3D8D #8D1C75 #8D6C1C #1C8D33

split-complementary

#1C3D8D #8D331C #758D1C

monochromatic

#081127 #12275A #1C3D8D #2653C0 #4973DB

Accessibility & contrast

On white

9.99

#1C3D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1C3D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D8D

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D8D	#FFFFFF	#000000	##FFFFFF
##1C3D8D	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c3d8d;
/* rgb */ color: rgb(28, 61, 141);
/* oklch */ color: oklch(38.7% 0.139 264.0);

Tailwind

colors: {
  custom: {
    50: '#6b72af',
    500: '#1c3d8d',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d8d;
$custom-light: #6b72af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d8d",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 222.478,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38722,
    "c": 0.1387,
    "h": 264
  },
  "luminance": 0.05507
}

Semantic roles & 50–950 ramp

primary

#1C3D8D

secondary

#BD9B48

accent

#B83EEA

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1C3D8D

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

Preview Lab → · Contrast checker → · Palette generator →