#1C404B#1C404B

#1C404B is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.045 H 220.4°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#1C404B
RGB	rgb(28, 64, 75)
HSL	hsl(194, 46%, 20%)
HSV	hsv(194, 63%, 29%)
CMYK	cmyk(62.7%, 14.7%, 0%, 70.6%)
CIE-LAB	lab(25.02, -9.17, -10.60)
CIE-LCH	lch(25.02, 14.02, 229.14°)
OKLab	oklab(34.99% -0.0345 -0.0294)
OKLCH	oklch(34.99% 0.045 220.4)
XYZ	xyz(3.5818, 4.4213, 7.3199)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C404B #4B271C

analogous

#1C4B3F #1C404B #1C284B

triadic

#1C404B #4B1C40 #404B1C

tetradic

#1C404B #3F1C4B #4B271C #284B1C

square

#1C404B #3F1C4B #4B271C #284B1C

split-complementary

#1C404B #4B1C28 #4B3F1C

monochromatic

#081316 #0B1A1E #1C404B #2D6678 #3D8CA4

Accessibility & contrast

On white

11.14

#1C404B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1C404B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C404B

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C404B	#FFFFFF	#000000	##FFFFFF
##1C404B	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393E4C

Deuteranopia (green-blind)

#32394B

Tritanopia (blue-blind)

#004443

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c404b;
/* rgb */ color: rgb(28, 64, 75);
/* oklch */ color: oklch(35.0% 0.045 220.4);

Tailwind

colors: {
  custom: {
    50: '#5d747d',
    500: '#1c404b',
    950: '#000000',
  },
}

SCSS

$custom: #1c404b;
$custom-light: #5d747d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c404b",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 194.043,
    "s": 45.631,
    "l": 20.196
  },
  "oklch": {
    "l": 0.34994,
    "c": 0.04539,
    "h": 220.4
  },
  "luminance": 0.04422
}

Semantic roles & 50–950 ramp

primary

#1C404B

secondary

#815142

accent

#7152D5

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #1C404B

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

Preview Lab → · Contrast checker → · Palette generator →