#1C4D7B#1C4D7B

#1C4D7B is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.093 H 250.0°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C4D7B
RGB	rgb(28, 77, 123)
HSL	hsl(209, 63%, 30%)
HSV	hsv(209, 77%, 48%)
CMYK	cmyk(77.2%, 37.4%, 0%, 51.8%)
CIE-LAB	lab(31.77, 0.71, -30.81)
CIE-LCH	lch(31.77, 30.82, 271.31°)
OKLab	oklab(41.13% -0.0319 -0.0877)
OKLCH	oklch(41.13% 0.093 250)
XYZ	xyz(6.7066, 6.9839, 19.7296)
Luminance	0.0698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4D7B #7B4A1C

analogous

#1C7B7A #1C4D7B #1C1D7B

triadic

#1C4D7B #7B1C4D #4D7B1C

tetradic

#1C4D7B #7A1C7B #7B4A1C #1D7B1C

square

#1C4D7B #7A1C7B #7B4A1C #1D7B1C

split-complementary

#1C4D7B #7B1C1D #7B7A1C

monochromatic

#061019 #112E49 #1C4D7B #276CAD #3E8BD3

Accessibility & contrast

On white

8.76

#1C4D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1C4D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4D7B

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4D7B	#FFFFFF	#000000	##FFFFFF
##1C4D7B	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38507D

Deuteranopia (green-blind)

#2A477A

Tritanopia (blue-blind)

#00585E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1c4d7b;
/* rgb */ color: rgb(28, 77, 123);
/* oklch */ color: oklch(41.1% 0.093 250.0);

Tailwind

colors: {
  custom: {
    50: '#667ea1',
    500: '#1c4d7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c4d7b;
$custom-light: #667ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4d7b",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 123
  },
  "hsl": {
    "h": 209.053,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.41134,
    "c": 0.09329,
    "h": 250
  },
  "luminance": 0.06985
}

Semantic roles & 50–950 ramp

primary

#1C4D7B

secondary

#AF7844

accent

#9142E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #1C4D7B

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

Preview Lab → · Contrast checker → · Palette generator →