#1B5D71#1B5D71

#1B5D71 is a dark, moderate cyan. Relative luminance 0.093; OKLCH L 44.7% C 0.072 H 222.3°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D71
RGB	rgb(27, 93, 113)
HSL	hsl(194, 61%, 27%)
HSV	hsv(194, 76%, 44%)
CMYK	cmyk(76.1%, 17.7%, 0%, 55.7%)
CIE-LAB	lab(36.47, -13.17, -17.27)
CIE-LCH	lch(36.47, 21.72, 232.67°)
OKLab	oklab(44.69% -0.053 -0.0483)
OKLCH	oklch(44.69% 0.072 222.3)
XYZ	xyz(7.3457, 9.2531, 17.0185)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D71 #712F1B

analogous

#1B715A #1B5D71 #1B3271

triadic

#1B5D71 #711B5D #5D711B

tetradic

#1B5D71 #5A1B71 #712F1B #32711B

square

#1B5D71 #5A1B71 #712F1B #32711B

split-complementary

#1B5D71 #711B32 #715A1B

monochromatic

#061419 #0F3440 #1B5D71 #2786A2 #37ACCF

Accessibility & contrast

On white

7.37

#1B5D71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1B5D71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D71

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D71	#FFFFFF	#000000	##FFFFFF
##1B5D71	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#515B72

Deuteranopia (green-blind)

#465271

Tritanopia (blue-blind)

#006363

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b5d71;
/* rgb */ color: rgb(27, 93, 113);
/* oklch */ color: oklch(44.7% 0.072 222.3);

Tailwind

colors: {
  custom: {
    50: '#658b99',
    500: '#1b5d71',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d71;
$custom-light: #658b99;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d71",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 113
  },
  "hsl": {
    "h": 193.953,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.44692,
    "c": 0.07173,
    "h": 222.3
  },
  "luminance": 0.09254
}

Semantic roles & 50–950 ramp

primary

#1B5D71

secondary

#A65942

accent

#6943E5

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #1B5D71

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

Preview Lab → · Contrast checker → · Palette generator →