#1C236E#1C236E

#1C236E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.5% C 0.128 H 272.1°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#1C236E
RGB	rgb(28, 35, 110)
HSL	hsl(235, 59%, 27%)
HSV	hsv(235, 75%, 43%)
CMYK	cmyk(74.5%, 68.2%, 0%, 56.9%)
CIE-LAB	lab(18.25, 24.72, -44.33)
CIE-LCH	lch(18.25, 50.76, 299.15°)
OKLab	oklab(30.53% 0.0046 -0.1281)
OKLCH	oklch(30.53% 0.128 272.1)
XYZ	xyz(3.8934, 2.5743, 15.0405)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C236E #6E671C

analogous

#1C4C6E #1C236E #3E1C6E

triadic

#1C236E #6E1C23 #236E1C

tetradic

#1C236E #6E1C4C #6E671C #1C6E3E

square

#1C236E #6E1C4C #6E671C #1C6E3E

split-complementary

#1C236E #6E3E1C #4C6E1C

monochromatic

#060818 #10133D #1C236E #28339F #3845CC

Accessibility & contrast

On white

13.86

#1C236E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1C236E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C236E

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C236E	#FFFFFF	#000000	##FFFFFF
##1C236E	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003070

Deuteranopia (green-blind)

#00296D

Tritanopia (blue-blind)

#003745

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c236e;
/* rgb */ color: rgb(28, 35, 110);
/* oklch */ color: oklch(30.5% 0.128 272.1);

Tailwind

colors: {
  custom: {
    50: '#655e98',
    500: '#1c236e',
    950: '#000000',
  },
}

SCSS

$custom: #1c236e;
$custom-light: #655e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1c236e",
  "rgb": {
    "r": 28,
    "g": 35,
    "b": 110
  },
  "hsl": {
    "h": 234.878,
    "s": 59.42,
    "l": 27.059
  },
  "oklch": {
    "l": 0.30525,
    "c": 0.12816,
    "h": 272.1
  },
  "luminance": 0.02575
}

Semantic roles & 50–950 ramp

primary

#1C236E

secondary

#A39B43

accent

#D545E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1C236E

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

Preview Lab → · Contrast checker → · Palette generator →