#1B586B#1B586B

#1B586B is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.1% C 0.068 H 222.7°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B586B
RGB	rgb(27, 88, 107)
HSL	hsl(194, 60%, 26%)
HSV	hsv(194, 75%, 42%)
CMYK	cmyk(74.8%, 17.8%, 0%, 58%)
CIE-LAB	lab(34.55, -12.41, -16.50)
CIE-LCH	lch(34.55, 20.65, 233.05°)
OKLab	oklab(43.07% -0.05 -0.0461)
OKLCH	oklch(43.07% 0.068 222.7)
XYZ	xyz(6.5945, 8.2732, 15.1564)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B586B #6B2E1B

analogous

#1B6B56 #1B586B #1B306B

triadic

#1B586B #6B1B58 #586B1B

tetradic

#1B586B #561B6B #6B2E1B #306B1B

square

#1B586B #561B6B #6B2E1B #306B1B

split-complementary

#1B586B #6B1B30 #6B561B

monochromatic

#061418 #0F303A #1B586B #27809C #35A8CC

Accessibility & contrast

On white

7.91

#1B586B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1B586B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B586B

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B586B	#FFFFFF	#000000	##FFFFFF
##1B586B	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D566C

Deuteranopia (green-blind)

#424E6B

Tritanopia (blue-blind)

#005E5E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b586b;
/* rgb */ color: rgb(27, 88, 107);
/* oklch */ color: oklch(43.1% 0.068 222.7);

Tailwind

colors: {
  custom: {
    50: '#648795',
    500: '#1b586b',
    950: '#000000',
  },
}

SCSS

$custom: #1b586b;
$custom-light: #648795;
$custom-dark: #000000;

JSON

{
  "hex": "#1b586b",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 107
  },
  "hsl": {
    "h": 194.25,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.43066,
    "c": 0.06806,
    "h": 222.7
  },
  "luminance": 0.08274
}

Semantic roles & 50–950 ramp

primary

#1B586B

secondary

#A05842

accent

#6A45E3

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B586B

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

Preview Lab → · Contrast checker → · Palette generator →