#1C243C#1C243C

#1C243C is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.5% C 0.047 H 269.1°. Best body text is #FFFFFF at 15.36:1 contrast (WCAG AA passes).

Color values

HEX	#1C243C
RGB	rgb(28, 36, 60)
HSL	hsl(225, 36%, 17%)
HSV	hsv(225, 53%, 24%)
CMYK	cmyk(53.3%, 40%, 0%, 76.5%)
CIE-LAB	lab(14.60, 4.42, -16.53)
CIE-LCH	lch(14.60, 17.11, 284.96°)
OKLab	oklab(26.53% -0.0007 -0.0465)
OKLCH	oklch(26.53% 0.047 269.1)
XYZ	xyz(1.9251, 1.8348, 4.5268)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C243C #3C341C

analogous

#1C343C #1C243C #241C3C

triadic

#1C243C #3C1C24 #243C1C

tetradic

#1C243C #3C1C34 #3C341C #1C3C24

square

#1C243C #3C1C34 #3C341C #1C3C24

split-complementary

#1C243C #3C241C #343C1C

monochromatic

#0A0D15 #0A0D15 #1C243C #2F3D66 #43568F

Accessibility & contrast

On white

15.36

#1C243C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1C243C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C243C

15.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C243C	#FFFFFF	#000000	##FFFFFF
##1C243C	1.00	15.36	1.37	15.36
#FFFFFF	15.36	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B263D

Deuteranopia (green-blind)

#18243B

Tritanopia (blue-blind)

#10292D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c243c;
/* rgb */ color: rgb(28, 36, 60);
/* oklch */ color: oklch(26.5% 0.047 269.1);

Tailwind

colors: {
  custom: {
    50: '#5a5e72',
    500: '#1c243c',
    950: '#000000',
  },
}

SCSS

$custom: #1c243c;
$custom-light: #5a5e72;
$custom-dark: #000000;

JSON

{
  "hex": "#1c243c",
  "rgb": {
    "r": 28,
    "g": 36,
    "b": 60
  },
  "hsl": {
    "h": 225,
    "s": 36.364,
    "l": 17.255
  },
  "oklch": {
    "l": 0.26529,
    "c": 0.04652,
    "h": 269.1
  },
  "luminance": 0.01835
}

Semantic roles & 50–950 ramp

primary

#1C243C

secondary

#716543

accent

#B05BCC

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#040407

muted

#79797A

Preview Lab

Preview with #1C243C

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

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