#1B5658#1B5658

#1B5658 is a dark, muted teal. Relative luminance 0.076; OKLCH L 41.7% C 0.059 H 198.3°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B5658
RGB	rgb(27, 86, 88)
HSL	hsl(182, 53%, 23%)
HSV	hsv(182, 69%, 35%)
CMYK	cmyk(69.3%, 2.3%, 0%, 65.5%)
CIE-LAB	lab(33.12, -17.85, -6.75)
CIE-LCH	lch(33.12, 19.09, 200.70°)
OKLab	oklab(41.67% -0.0565 -0.0187)
OKLCH	oklch(41.67% 0.059 198.3)
XYZ	xyz(5.5405, 7.5926, 10.4041)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5658 #581D1B

analogous

#1B583B #1B5658 #1B3858

triadic

#1B5658 #581B56 #56581B

tetradic

#1B5658 #3B1B58 #581D1B #38581B

square

#1B5658 #3B1B58 #581D1B #38581B

split-complementary

#1B5658 #581B38 #583B1B

monochromatic

#071717 #0D2829 #1B5658 #298487 #38B2B6

Accessibility & contrast

On white

8.34

#1B5658 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1B5658 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5658

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5658	#FFFFFF	#000000	##FFFFFF
##1B5658	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#505258

Deuteranopia (green-blind)

#464B58

Tritanopia (blue-blind)

#005956

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b5658;
/* rgb */ color: rgb(27, 86, 88);
/* oklch */ color: oklch(41.7% 0.059 198.3);

Tailwind

colors: {
  custom: {
    50: '#618687',
    500: '#1b5658',
    950: '#000000',
  },
}

SCSS

$custom: #1b5658;
$custom-light: #618687;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5658",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 88
  },
  "hsl": {
    "h": 181.967,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.4167,
    "c": 0.05949,
    "h": 198.3
  },
  "luminance": 0.07593
}

Semantic roles & 50–950 ramp

primary

#1B5658

secondary

#8E4441

accent

#504BDC

background

#F6F8F8

surface

#EBEFEF

border

#C6CACA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B5658

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

Preview Lab → · Contrast checker → · Palette generator →