#1C358C#1C358C

#1C358C is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.148 H 266.6°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C358C
RGB	rgb(28, 53, 140)
HSL	hsl(227, 67%, 33%)
HSV	hsv(227, 80%, 55%)
CMYK	cmyk(80%, 62.1%, 0%, 45.1%)
CIE-LAB	lab(25.82, 24.04, -50.96)
CIE-LCH	lch(25.82, 56.35, 295.26°)
OKLab	oklab(36.96% -0.0088 -0.1473)
OKLCH	oklch(36.96% 0.148 266.6)
XYZ	xyz(6.4840, 4.6858, 25.3686)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C358C #8C731C

analogous

#1C6D8C #1C358C #3B1C8C

triadic

#1C358C #8C1C35 #358C1C

tetradic

#1C358C #8C1C6D #8C731C #1C8C3B

square

#1C358C #8C1C6D #8C731C #1C8C3B

split-complementary

#1C358C #8C3B1C #6D8C1C

monochromatic

#080E26 #122259 #1C358C #2648BF #4869DA

Accessibility & contrast

On white

10.84

#1C358C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1C358C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C358C

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C358C	#FFFFFF	#000000	##FFFFFF
##1C358C	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438F

Deuteranopia (green-blind)

#00388A

Tritanopia (blue-blind)

#004B5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c358c;
/* rgb */ color: rgb(28, 53, 140);
/* oklch */ color: oklch(37.0% 0.148 266.6);

Tailwind

colors: {
  custom: {
    50: '#6c6bae',
    500: '#1c358c',
    950: '#000000',
  },
}

SCSS

$custom: #1c358c;
$custom-light: #6c6bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c358c",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 140
  },
  "hsl": {
    "h": 226.607,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36963,
    "c": 0.14759,
    "h": 266.6
  },
  "luminance": 0.04687
}

Semantic roles & 50–950 ramp

primary

#1C358C

secondary

#BCA248

accent

#C33EEA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C358C

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

Preview Lab → · Contrast checker → · Palette generator →