#1C243A#1C243A

#1C243A is a dark, muted blue. Relative luminance 0.018; OKLCH L 26.4% C 0.043 H 268.2°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C243A
RGB	rgb(28, 36, 58)
HSL	hsl(224, 35%, 17%)
HSV	hsv(224, 52%, 23%)
CMYK	cmyk(51.7%, 37.9%, 0%, 77.3%)
CIE-LAB	lab(14.48, 3.68, -15.31)
CIE-LCH	lch(14.48, 15.75, 283.52°)
OKLab	oklab(26.4% -0.0014 -0.043)
OKLCH	oklch(26.4% 0.043 268.2)
XYZ	xyz(1.8732, 1.8140, 4.2536)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C243A #3A321C

analogous

#1C333A #1C243A #231C3A

triadic

#1C243A #3A1C24 #243A1C

tetradic

#1C243A #3A1C33 #3A321C #1C3A23

square

#1C243A #3A1C33 #3A321C #1C3A23

split-complementary

#1C243A #3A231C #333A1C

monochromatic

#0A0D15 #0A0D15 #1C243A #303E63 #44578D

Accessibility & contrast

On white

15.41

#1C243A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1C243A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C243A

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C243A	#FFFFFF	#000000	##FFFFFF
##1C243A	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C263B

Deuteranopia (green-blind)

#19233A

Tritanopia (blue-blind)

#11292C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c243a;
/* rgb */ color: rgb(28, 36, 58);
/* oklch */ color: oklch(26.4% 0.043 268.2);

Tailwind

colors: {
  custom: {
    50: '#5a5e70',
    500: '#1c243a',
    950: '#000000',
  },
}

SCSS

$custom: #1c243a;
$custom-light: #5a5e70;
$custom-dark: #000000;

JSON

{
  "hex": "#1c243a",
  "rgb": {
    "r": 28,
    "g": 36,
    "b": 58
  },
  "hsl": {
    "h": 224,
    "s": 34.884,
    "l": 16.863
  },
  "oklch": {
    "l": 0.26402,
    "c": 0.04298,
    "h": 268.2
  },
  "luminance": 0.01814
}

Semantic roles & 50–950 ramp

primary

#1C243A

secondary

#6F6343

accent

#AE5DCB

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#040407

muted

#79797A

Preview Lab

Preview with #1C243A

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

Preview Lab → · Contrast checker → · Palette generator →