#1B447C#1B447C

#1B447C is a dark, moderate cyan. Relative luminance 0.058; OKLCH L 39.0% C 0.105 H 257.1°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B447C
RGB	rgb(27, 68, 124)
HSL	hsl(215, 64%, 30%)
HSV	hsv(215, 78%, 49%)
CMYK	cmyk(78.2%, 45.2%, 0%, 51.4%)
CIE-LAB	lab(28.96, 7.01, -35.92)
CIE-LCH	lch(28.96, 36.59, 281.04°)
OKLab	oklab(38.95% -0.0235 -0.1028)
OKLCH	oklch(38.95% 0.105 257.1)
XYZ	xyz(6.1559, 5.8218, 19.8642)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B447C #7C531B

analogous

#1B757C #1B447C #231B7C

triadic

#1B447C #7C1B44 #447C1B

tetradic

#1B447C #7C1B75 #7C531B #1B7C23

square

#1B447C #7C1B75 #7C531B #1B7C23

split-complementary

#1B447C #7C231B #757C1B

monochromatic

#050E19 #10284A #1B447C #2660AE #3D7DD5

Accessibility & contrast

On white

9.70

#1B447C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1B447C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B447C

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B447C	#FFFFFF	#000000	##FFFFFF
##1B447C	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28497E

Deuteranopia (green-blind)

#16407B

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b447c;
/* rgb */ color: rgb(27, 68, 124);
/* oklch */ color: oklch(39.0% 0.105 257.1);

Tailwind

colors: {
  custom: {
    50: '#6677a2',
    500: '#1b447c',
    950: '#000000',
  },
}

SCSS

$custom: #1b447c;
$custom-light: #6677a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b447c",
  "rgb": {
    "r": 27,
    "g": 68,
    "b": 124
  },
  "hsl": {
    "h": 214.639,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38953,
    "c": 0.10548,
    "h": 257.1
  },
  "luminance": 0.05822
}

Semantic roles & 50–950 ramp

primary

#1B447C

secondary

#B08243

accent

#A141E7

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1B447C

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

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