#1B415A#1B415A

#1B415A is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.0% C 0.061 H 240.3°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B415A
RGB	rgb(27, 65, 90)
HSL	hsl(204, 54%, 23%)
HSV	hsv(204, 70%, 35%)
CMYK	cmyk(70%, 27.8%, 0%, 64.7%)
CIE-LAB	lab(26.01, -4.51, -18.89)
CIE-LCH	lch(26.01, 19.42, 256.57°)
OKLab	oklab(36% -0.0303 -0.0531)
OKLCH	oklch(36% 0.061 240.3)
XYZ	xyz(4.1871, 4.7514, 10.3673)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B415A #5A341B

analogous

#1B5A53 #1B415A #1B215A

triadic

#1B415A #5A1B41 #415A1B

tetradic

#1B415A #531B5A #5A341B #215A1B

square

#1B415A #531B5A #5A341B #215A1B

split-complementary

#1B415A #5A1B21 #5A531B

monochromatic

#071118 #0D1F2B #1B415A #296389 #3785B8

Accessibility & contrast

On white

10.77

#1B415A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1B415A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B415A

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B415A	#FFFFFF	#000000	##FFFFFF
##1B415A	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36415B

Deuteranopia (green-blind)

#2D3B5A

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b415a;
/* rgb */ color: rgb(27, 65, 90);
/* oklch */ color: oklch(36.0% 0.061 240.3);

Tailwind

colors: {
  custom: {
    50: '#5f7588',
    500: '#1b415a',
    950: '#000000',
  },
}

SCSS

$custom: #1b415a;
$custom-light: #5f7588;
$custom-dark: #000000;

JSON

{
  "hex": "#1b415a",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 90
  },
  "hsl": {
    "h": 203.81,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.36005,
    "c": 0.06116,
    "h": 240.3
  },
  "luminance": 0.04752
}

Semantic roles & 50–950 ramp

primary

#1B415A

secondary

#906041

accent

#854BDD

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1B415A

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

Preview Lab → · Contrast checker → · Palette generator →