#1C358D#1C358D

#1C358D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.149 H 266.6°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#1C358D
RGB	rgb(28, 53, 141)
HSL	hsl(227, 67%, 33%)
HSV	hsv(227, 80%, 55%)
CMYK	cmyk(80.1%, 62.4%, 0%, 44.7%)
CIE-LAB	lab(25.91, 24.44, -51.44)
CIE-LCH	lch(25.91, 56.95, 295.41°)
OKLab	oklab(37.06% -0.0088 -0.1487)
OKLCH	oklch(37.06% 0.149 266.6)
XYZ	xyz(6.5580, 4.7154, 25.7587)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C358D #8D741C

analogous

#1C6D8D #1C358D #3C1C8D

triadic

#1C358D #8D1C35 #358D1C

tetradic

#1C358D #8D1C6D #8D741C #1C8D3C

square

#1C358D #8D1C6D #8D741C #1C8D3C

split-complementary

#1C358D #8D3C1C #6D8D1C

monochromatic

#080F27 #12225A #1C358D #2648C0 #4969DB

Accessibility & contrast

On white

10.81

#1C358D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C358D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C358D

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C358D	#FFFFFF	#000000	##FFFFFF
##1C358D	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004390

Deuteranopia (green-blind)

#00388B

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c358d;
/* rgb */ color: rgb(28, 53, 141);
/* oklch */ color: oklch(37.1% 0.149 266.6);

Tailwind

colors: {
  custom: {
    50: '#6c6baf',
    500: '#1c358d',
    950: '#000000',
  },
}

SCSS

$custom: #1c358d;
$custom-light: #6c6baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1c358d",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 141
  },
  "hsl": {
    "h": 226.726,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.37056,
    "c": 0.14898,
    "h": 266.6
  },
  "luminance": 0.04716
}

Semantic roles & 50–950 ramp

primary

#1C358D

secondary

#BDA348

accent

#C43EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C358D

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

Preview Lab → · Contrast checker → · Palette generator →