#1B415B#1B415B

#1B415B is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.1% C 0.062 H 241.4°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B415B
RGB	rgb(27, 65, 91)
HSL	hsl(204, 54%, 23%)
HSV	hsv(204, 70%, 36%)
CMYK	cmyk(70.3%, 28.6%, 0%, 64.3%)
CIE-LAB	lab(26.06, -4.13, -19.46)
CIE-LCH	lch(26.06, 19.89, 258.03°)
OKLab	oklab(36.06% -0.0299 -0.0548)
OKLCH	oklch(36.06% 0.062 241.4)
XYZ	xyz(4.2299, 4.7685, 10.5930)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B415B #5B351B

analogous

#1B5B55 #1B415B #1B215B

triadic

#1B415B #5B1B41 #415B1B

tetradic

#1B415B #551B5B #5B351B #215B1B

square

#1B415B #551B5B #5B351B #215B1B

split-complementary

#1B415B #5B1B21 #5B551B

monochromatic

#071118 #0D1F2C #1B415B #29638A #3784B9

Accessibility & contrast

On white

10.75

#1B415B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1B415B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B415B

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B415B	#FFFFFF	#000000	##FFFFFF
##1B415B	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35415C

Deuteranopia (green-blind)

#2C3B5B

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b415b;
/* rgb */ color: rgb(27, 65, 91);
/* oklch */ color: oklch(36.1% 0.062 241.4);

Tailwind

colors: {
  custom: {
    50: '#5f7589',
    500: '#1b415b',
    950: '#000000',
  },
}

SCSS

$custom: #1b415b;
$custom-light: #5f7589;
$custom-dark: #000000;

JSON

{
  "hex": "#1b415b",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 91
  },
  "hsl": {
    "h": 204.375,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.36061,
    "c": 0.06242,
    "h": 241.4
  },
  "luminance": 0.04769
}

Semantic roles & 50–950 ramp

primary

#1B415B

secondary

#916141

accent

#864ADE

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1B415B

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

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