#1C236B#1C236B

#1C236B is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.2% C 0.124 H 272.2°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#1C236B
RGB	rgb(28, 35, 107)
HSL	hsl(235, 59%, 26%)
HSV	hsv(235, 74%, 42%)
CMYK	cmyk(73.8%, 67.3%, 0%, 58%)
CIE-LAB	lab(17.96, 23.56, -42.85)
CIE-LCH	lch(17.96, 48.90, 298.80°)
OKLab	oklab(30.23% 0.0049 -0.1237)
OKLCH	oklch(30.23% 0.124 272.2)
XYZ	xyz(3.7329, 2.5101, 14.1948)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C236B #6B641C

analogous

#1C4B6B #1C236B #3D1C6B

triadic

#1C236B #6B1C23 #236B1C

tetradic

#1C236B #6B1C4B #6B641C #1C6B3D

square

#1C236B #6B1C4B #6B641C #1C6B3D

split-complementary

#1C236B #6B3D1C #4B6B1C

monochromatic

#060818 #0F133A #1C236B #29339C #3744CB

Accessibility & contrast

On white

13.98

#1C236B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1C236B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C236B

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C236B	#FFFFFF	#000000	##FFFFFF
##1C236B	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00306D

Deuteranopia (green-blind)

#00286A

Tritanopia (blue-blind)

#003643

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c236b;
/* rgb */ color: rgb(28, 35, 107);
/* oklch */ color: oklch(30.2% 0.124 272.2);

Tailwind

colors: {
  custom: {
    50: '#655e96',
    500: '#1c236b',
    950: '#000000',
  },
}

SCSS

$custom: #1c236b;
$custom-light: #655e96;
$custom-dark: #000000;

JSON

{
  "hex": "#1c236b",
  "rgb": {
    "r": 28,
    "g": 35,
    "b": 107
  },
  "hsl": {
    "h": 234.684,
    "s": 58.519,
    "l": 26.471
  },
  "oklch": {
    "l": 0.30227,
    "c": 0.12384,
    "h": 272.2
  },
  "luminance": 0.0251
}

Semantic roles & 50–950 ramp

primary

#1C236B

secondary

#A09843

accent

#D446E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1C236B

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

Preview Lab → · Contrast checker → · Palette generator →