#1C338C#1C338C

#1C338C is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.150 H 267.1°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1C338C
RGB	rgb(28, 51, 140)
HSL	hsl(228, 67%, 33%)
HSV	hsv(228, 80%, 55%)
CMYK	cmyk(80%, 63.6%, 0%, 45.1%)
CIE-LAB	lab(25.28, 25.42, -51.84)
CIE-LCH	lch(25.28, 57.74, 296.12°)
OKLab	oklab(36.56% -0.0075 -0.1499)
OKLCH	oklch(36.56% 0.15 267.1)
XYZ	xyz(6.3947, 4.5072, 25.3388)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C338C #8C751C

analogous

#1C6B8C #1C338C #3D1C8C

triadic

#1C338C #8C1C33 #338C1C

tetradic

#1C338C #8C1C6B #8C751C #1C8C3D

square

#1C338C #8C1C6B #8C751C #1C8C3D

split-complementary

#1C338C #8C3D1C #6B8C1C

monochromatic

#080E26 #122059 #1C338C #2646BF #4866DA

Accessibility & contrast

On white

11.04

#1C338C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C338C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C338C

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C338C	#FFFFFF	#000000	##FFFFFF
##1C338C	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418F

Deuteranopia (green-blind)

#00378A

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c338c;
/* rgb */ color: rgb(28, 51, 140);
/* oklch */ color: oklch(36.6% 0.150 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c6aae',
    500: '#1c338c',
    950: '#000000',
  },
}

SCSS

$custom: #1c338c;
$custom-light: #6c6aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c338c",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 140
  },
  "hsl": {
    "h": 227.679,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36564,
    "c": 0.15012,
    "h": 267.1
  },
  "luminance": 0.04508
}

Semantic roles & 50–950 ramp

primary

#1C338C

secondary

#BCA448

accent

#C63EEA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C338C

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

Preview Lab → · Contrast checker → · Palette generator →