#1C4B7A#1C4B7A

#1C4B7A is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.6% C 0.094 H 251.3°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C4B7A
RGB	rgb(28, 75, 122)
HSL	hsl(210, 63%, 29%)
HSV	hsv(210, 77%, 48%)
CMYK	cmyk(77%, 38.5%, 0%, 52.2%)
CIE-LAB	lab(31.07, 1.63, -31.29)
CIE-LCH	lch(31.07, 31.33, 272.98°)
OKLab	oklab(40.57% -0.0301 -0.0891)
OKLCH	oklch(40.57% 0.094 251.3)
XYZ	xyz(6.5065, 6.6834, 19.3557)
Luminance	0.0668 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4B7A #7A4B1C

analogous

#1C7A7A #1C4B7A #1C1C7A

triadic

#1C4B7A #7A1C4B #4B7A1C

tetradic

#1C4B7A #7A1C7A #7A4B1C #1C7A1C

square

#1C4B7A #7A1C7A #7A4B1C #1C7A1C

split-complementary

#1C4B7A #7A1C1C #7A7A1C

monochromatic

#060F19 #112C48 #1C4B7A #276AAC #3E88D3

Accessibility & contrast

On white

8.99

#1C4B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1C4B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4B7A

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4B7A	#FFFFFF	#000000	##FFFFFF
##1C4B7A	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354E7C

Deuteranopia (green-blind)

#274579

Tritanopia (blue-blind)

#00565C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c4b7a;
/* rgb */ color: rgb(28, 75, 122);
/* oklch */ color: oklch(40.6% 0.094 251.3);

Tailwind

colors: {
  custom: {
    50: '#667ca1',
    500: '#1c4b7a',
    950: '#000000',
  },
}

SCSS

$custom: #1c4b7a;
$custom-light: #667ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4b7a",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 122
  },
  "hsl": {
    "h": 210,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40571,
    "c": 0.09407,
    "h": 251.3
  },
  "luminance": 0.06684
}

Semantic roles & 50–950 ramp

primary

#1C4B7A

secondary

#AE7944

accent

#9442E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #1C4B7A

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

Preview Lab → · Contrast checker → · Palette generator →