#1B5261#1B5261

#1B5261 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.0% C 0.061 H 219.3°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B5261
RGB	rgb(27, 82, 97)
HSL	hsl(193, 56%, 24%)
HSV	hsv(193, 72%, 38%)
CMYK	cmyk(72.2%, 15.5%, 0%, 62%)
CIE-LAB	lab(32.10, -12.47, -13.98)
CIE-LCH	lch(32.10, 18.73, 228.26°)
OKLab	oklab(40.97% -0.0475 -0.039)
OKLCH	oklch(40.97% 0.061 219.3)
XYZ	xyz(5.6261, 7.1300, 12.3867)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5261 #612A1B

analogous

#1B614D #1B5261 #1B2F61

triadic

#1B5261 #611B52 #52611B

tetradic

#1B5261 #4D1B61 #612A1B #2F611B

square

#1B5261 #4D1B61 #612A1B #2F611B

split-complementary

#1B5261 #611B2F #614D1B

monochromatic

#071418 #0E2A31 #1B5261 #287A91 #36A3C1

Accessibility & contrast

On white

8.66

#1B5261 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B5261 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5261

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5261	#FFFFFF	#000000	##FFFFFF
##1B5261	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495062

Deuteranopia (green-blind)

#3F4861

Tritanopia (blue-blind)

#005757

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b5261;
/* rgb */ color: rgb(27, 82, 97);
/* oklch */ color: oklch(41.0% 0.061 219.3);

Tailwind

colors: {
  custom: {
    50: '#62828e',
    500: '#1b5261',
    950: '#000000',
  },
}

SCSS

$custom: #1b5261;
$custom-light: #62828e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5261",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 97
  },
  "hsl": {
    "h": 192.857,
    "s": 56.452,
    "l": 24.314
  },
  "oklch": {
    "l": 0.40965,
    "c": 0.06146,
    "h": 219.3
  },
  "luminance": 0.07131
}

Semantic roles & 50–950 ramp

primary

#1B5261

secondary

#975441

accent

#6948E0

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0C

muted

#7A7C7D

Preview Lab

Preview with #1B5261

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

Preview Lab → · Contrast checker → · Palette generator →