#1B586F#1B586F

#1B586F is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.3% C 0.071 H 227.3°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B586F
RGB	rgb(27, 88, 111)
HSL	hsl(196, 61%, 27%)
HSV	hsv(196, 76%, 44%)
CMYK	cmyk(75.7%, 20.7%, 0%, 56.5%)
CIE-LAB	lab(34.72, -10.96, -18.73)
CIE-LCH	lch(34.72, 21.69, 239.67°)
OKLab	oklab(43.26% -0.0484 -0.0525)
OKLCH	oklch(43.26% 0.071 227.3)
XYZ	xyz(6.8098, 8.3594, 16.2905)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B586F #6F321B

analogous

#1B6F5C #1B586F #1B2E6F

triadic

#1B586F #6F1B58 #586F1B

tetradic

#1B586F #5C1B6F #6F321B #2E6F1B

square

#1B586F #5C1B6F #6F321B #2E6F1B

split-complementary

#1B586F #6F1B2E #6F5C1B

monochromatic

#061419 #0F313E #1B586F #277FA0 #36A5CE

Accessibility & contrast

On white

7.86

#1B586F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1B586F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B586F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B586F	#FFFFFF	#000000	##FFFFFF
##1B586F	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5670

Deuteranopia (green-blind)

#404E6F

Tritanopia (blue-blind)

#005F60

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b586f;
/* rgb */ color: rgb(27, 88, 111);
/* oklch */ color: oklch(43.3% 0.071 227.3);

Tailwind

colors: {
  custom: {
    50: '#648798',
    500: '#1b586f',
    950: '#000000',
  },
}

SCSS

$custom: #1b586f;
$custom-light: #648798;
$custom-dark: #000000;

JSON

{
  "hex": "#1b586f",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 111
  },
  "hsl": {
    "h": 196.429,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.43264,
    "c": 0.07137,
    "h": 227.3
  },
  "luminance": 0.0836
}

Semantic roles & 50–950 ramp

primary

#1B586F

secondary

#A45D42

accent

#7044E4

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B586F

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

Preview Lab → · Contrast checker → · Palette generator →