#1C404F#1C404F

#1C404F is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.2% C 0.049 H 227.8°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C404F
RGB	rgb(28, 64, 79)
HSL	hsl(198, 48%, 21%)
HSV	hsv(198, 65%, 31%)
CMYK	cmyk(64.6%, 19%, 0%, 69%)
CIE-LAB	lab(25.19, -7.75, -12.97)
CIE-LCH	lch(25.19, 15.10, 239.15°)
OKLab	oklab(35.19% -0.0327 -0.0361)
OKLCH	oklch(35.19% 0.049 227.8)
XYZ	xyz(3.7230, 4.4778, 8.0637)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C404F #4F2B1C

analogous

#1C4F44 #1C404F #1C264F

triadic

#1C404F #4F1C40 #404F1C

tetradic

#1C404F #441C4F #4F2B1C #264F1C

square

#1C404F #441C4F #4F2B1C #264F1C

split-complementary

#1C404F #4F1C26 #4F441C

monochromatic

#081217 #0C1B22 #1C404F #2C657C #3C89A9

Accessibility & contrast

On white

11.08

#1C404F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C404F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C404F

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C404F	#FFFFFF	#000000	##FFFFFF
##1C404F	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383F50

Deuteranopia (green-blind)

#31394F

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c404f;
/* rgb */ color: rgb(28, 64, 79);
/* oklch */ color: oklch(35.2% 0.049 227.8);

Tailwind

colors: {
  custom: {
    50: '#5e7480',
    500: '#1c404f',
    950: '#000000',
  },
}

SCSS

$custom: #1c404f;
$custom-light: #5e7480;
$custom-dark: #000000;

JSON

{
  "hex": "#1c404f",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 79
  },
  "hsl": {
    "h": 197.647,
    "s": 47.664,
    "l": 20.98
  },
  "oklch": {
    "l": 0.35191,
    "c": 0.04876,
    "h": 227.8
  },
  "luminance": 0.04478
}

Semantic roles & 50–950 ramp

primary

#1C404F

secondary

#855642

accent

#7851D7

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #1C404F

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

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