#1C338A#1C338A

#1C338A is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.147 H 267.1°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#1C338A
RGB	rgb(28, 51, 138)
HSL	hsl(227, 66%, 33%)
HSV	hsv(227, 80%, 54%)
CMYK	cmyk(79.7%, 63%, 0%, 45.9%)
CIE-LAB	lab(25.10, 24.63, -50.89)
CIE-LCH	lch(25.10, 56.54, 295.83°)
OKLab	oklab(36.38% -0.0075 -0.1471)
OKLCH	oklch(36.38% 0.147 267.1)
XYZ	xyz(6.2486, 4.4488, 24.5692)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C338A #8A731C

analogous

#1C6A8A #1C338A #3C1C8A

triadic

#1C338A #8A1C33 #338A1C

tetradic

#1C338A #8A1C6A #8A731C #1C8A3C

square

#1C338A #8A1C6A #8A731C #1C8A3C

split-complementary

#1C338A #8A3C1C #6A8A1C

monochromatic

#070D24 #122057 #1C338A #2646BD #4765DA

Accessibility & contrast

On white

11.11

#1C338A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1C338A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C338A

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C338A	#FFFFFF	#000000	##FFFFFF
##1C338A	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418D

Deuteranopia (green-blind)

#003788

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c338a;
/* rgb */ color: rgb(28, 51, 138);
/* oklch */ color: oklch(36.4% 0.147 267.1);

Tailwind

colors: {
  custom: {
    50: '#6b6aad',
    500: '#1c338a',
    950: '#000000',
  },
}

SCSS

$custom: #1c338a;
$custom-light: #6b6aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c338a",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 138
  },
  "hsl": {
    "h": 227.455,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36375,
    "c": 0.14734,
    "h": 267.1
  },
  "luminance": 0.0445
}

Semantic roles & 50–950 ramp

primary

#1C338A

secondary

#BBA346

accent

#C63FE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1C338A

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

Preview Lab → · Contrast checker → · Palette generator →