#1B575F#1B575F

#1B575F is a dark, moderate teal. Relative luminance 0.079; OKLCH L 42.2% C 0.061 H 207.7°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B575F
RGB	rgb(27, 87, 95)
HSL	hsl(187, 56%, 24%)
HSV	hsv(187, 72%, 37%)
CMYK	cmyk(71.6%, 8.4%, 0%, 62.7%)
CIE-LAB	lab(33.72, -16.06, -10.25)
CIE-LCH	lch(33.72, 19.05, 212.54°)
OKLab	oklab(42.24% -0.0543 -0.0284)
OKLCH	oklch(42.24% 0.061 207.7)
XYZ	xyz(5.9249, 7.8750, 12.0320)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B575F #5F231B

analogous

#1B5F45 #1B575F #1B355F

triadic

#1B575F #5F1B57 #575F1B

tetradic

#1B575F #451B5F #5F231B #355F1B

square

#1B575F #451B5F #5F231B #355F1B

split-complementary

#1B575F #5F1B35 #5F451B

monochromatic

#071618 #0D2B2F #1B575F #29838F #36AEBE

Accessibility & contrast

On white

8.15

#1B575F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B575F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B575F

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B575F	#FFFFFF	#000000	##FFFFFF
##1B575F	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5360

Deuteranopia (green-blind)

#454C5F

Tritanopia (blue-blind)

#005B59

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b575f;
/* rgb */ color: rgb(27, 87, 95);
/* oklch */ color: oklch(42.2% 0.061 207.7);

Tailwind

colors: {
  custom: {
    50: '#62868c',
    500: '#1b575f',
    950: '#000000',
  },
}

SCSS

$custom: #1b575f;
$custom-light: #62868c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b575f",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 95
  },
  "hsl": {
    "h": 187.059,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.42242,
    "c": 0.06128,
    "h": 207.7
  },
  "luminance": 0.07876
}

Semantic roles & 50–950 ramp

primary

#1B575F

secondary

#954B41

accent

#5A49DF

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #1B575F

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

Preview Lab → · Contrast checker → · Palette generator →