#1B5972#1B5972

#1B5972 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.7% C 0.074 H 229.1°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B5972
RGB	rgb(27, 89, 114)
HSL	hsl(197, 62%, 28%)
HSV	hsv(197, 76%, 45%)
CMYK	cmyk(76.3%, 21.9%, 0%, 55.3%)
CIE-LAB	lab(35.19, -10.45, -19.87)
CIE-LCH	lch(35.19, 22.45, 242.26°)
OKLab	oklab(43.68% -0.0482 -0.0558)
OKLCH	oklch(43.68% 0.074 229.1)
XYZ	xyz(7.0604, 8.5919, 17.2026)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5972 #72341B

analogous

#1B725F #1B5972 #1B2E72

triadic

#1B5972 #721B59 #59721B

tetradic

#1B5972 #5F1B72 #72341B #2E721B

square

#1B5972 #5F1B72 #72341B #2E721B

split-complementary

#1B5972 #721B2E #725F1B

monochromatic

#061319 #0F3241 #1B5972 #2780A3 #38A4D0

Accessibility & contrast

On white

7.72

#1B5972 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1B5972 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5972

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5972	#FFFFFF	#000000	##FFFFFF
##1B5972	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5873

Deuteranopia (green-blind)

#404F72

Tritanopia (blue-blind)

#006061

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5972;
/* rgb */ color: rgb(27, 89, 114);
/* oklch */ color: oklch(43.7% 0.074 229.1);

Tailwind

colors: {
  custom: {
    50: '#65889a',
    500: '#1b5972',
    950: '#000000',
  },
}

SCSS

$custom: #1b5972;
$custom-light: #65889a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5972",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 114
  },
  "hsl": {
    "h": 197.241,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.43681,
    "c": 0.07373,
    "h": 229.1
  },
  "luminance": 0.08593
}

Semantic roles & 50–950 ramp

primary

#1B5972

secondary

#A75F42

accent

#7143E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5972

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

Preview Lab → · Contrast checker → · Palette generator →