#1C4166#1C4166

#1C4166 is a dark, moderate cyan. Relative luminance 0.050; OKLCH L 36.8% C 0.077 H 250.7°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C4166
RGB	rgb(28, 65, 102)
HSL	hsl(210, 57%, 25%)
HSV	hsv(210, 73%, 40%)
CMYK	cmyk(72.5%, 36.3%, 0%, 60%)
CIE-LAB	lab(26.70, 0.35, -25.57)
CIE-LCH	lch(26.70, 25.57, 270.79°)
OKLab	oklab(36.76% -0.0254 -0.0725)
OKLCH	oklch(36.76% 0.077 250.7)
XYZ	xyz(4.7666, 4.9863, 13.2790)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4166 #66411C

analogous

#1C6666 #1C4166 #1C1C66

triadic

#1C4166 #661C41 #41661C

tetradic

#1C4166 #661C66 #66411C #1C661C

square

#1C4166 #661C66 #66411C #1C661C

split-complementary

#1C4166 #661C1C #66661C

monochromatic

#070F18 #0F2236 #1C4166 #296096 #367EC6

Accessibility & contrast

On white

10.51

#1C4166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1C4166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4166

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4166	#FFFFFF	#000000	##FFFFFF
##1C4166	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314368

Deuteranopia (green-blind)

#263C65

Tritanopia (blue-blind)

#004A4E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c4166;
/* rgb */ color: rgb(28, 65, 102);
/* oklch */ color: oklch(36.8% 0.077 250.7);

Tailwind

colors: {
  custom: {
    50: '#627592',
    500: '#1c4166',
    950: '#000000',
  },
}

SCSS

$custom: #1c4166;
$custom-light: #627592;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4166",
  "rgb": {
    "r": 28,
    "g": 65,
    "b": 102
  },
  "hsl": {
    "h": 210,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.36764,
    "c": 0.07684,
    "h": 250.7
  },
  "luminance": 0.04987
}

Semantic roles & 50–950 ramp

primary

#1C4166

secondary

#9B6F43

accent

#9448E0

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080D

muted

#7A7B7D

Preview Lab

Preview with #1C4166

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

Preview Lab → · Contrast checker → · Palette generator →