#1B477C#1B477C

#1B477C is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.7% C 0.102 H 255.0°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#1B477C
RGB	rgb(27, 71, 124)
HSL	hsl(213, 64%, 30%)
HSV	hsv(213, 78%, 49%)
CMYK	cmyk(78.2%, 42.7%, 0%, 51.4%)
CIE-LAB	lab(29.90, 4.97, -34.42)
CIE-LCH	lch(29.90, 34.77, 278.21°)
OKLab	oklab(39.68% -0.0264 -0.0984)
OKLCH	oklch(39.68% 0.102 255)
XYZ	xyz(6.3420, 6.1940, 19.9262)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B477C #7C501B

analogous

#1B777C #1B477C #201B7C

triadic

#1B477C #7C1B47 #477C1B

tetradic

#1B477C #7C1B77 #7C501B #1B7C20

square

#1B477C #7C1B77 #7C501B #1B7C20

split-complementary

#1B477C #7C201B #777C1B

monochromatic

#050E19 #102A4A #1B477C #2664AE #3D82D5

Accessibility & contrast

On white

9.38

#1B477C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1B477C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B477C

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B477C	#FFFFFF	#000000	##FFFFFF
##1B477C	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4B7E

Deuteranopia (green-blind)

#1D427B

Tritanopia (blue-blind)

#00535B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b477c;
/* rgb */ color: rgb(27, 71, 124);
/* oklch */ color: oklch(39.7% 0.102 255.0);

Tailwind

colors: {
  custom: {
    50: '#6679a2',
    500: '#1b477c',
    950: '#000000',
  },
}

SCSS

$custom: #1b477c;
$custom-light: #6679a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b477c",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 124
  },
  "hsl": {
    "h": 212.784,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.39681,
    "c": 0.10183,
    "h": 255
  },
  "luminance": 0.06195
}

Semantic roles & 50–950 ramp

primary

#1B477C

secondary

#B07E43

accent

#9C41E7

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B477C

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

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