#1B4E55#1B4E55

#1B4E55 is a dark, muted teal. Relative luminance 0.063; OKLCH L 39.3% C 0.055 H 207.7°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E55
RGB	rgb(27, 78, 85)
HSL	hsl(187, 52%, 22%)
HSV	hsv(187, 68%, 33%)
CMYK	cmyk(68.2%, 8.2%, 0%, 66.7%)
CIE-LAB	lab(30.25, -14.33, -9.16)
CIE-LCH	lch(30.25, 17.01, 212.59°)
OKLab	oklab(39.32% -0.0483 -0.0254)
OKLCH	oklch(39.32% 0.055 207.7)
XYZ	xyz(4.8154, 6.3372, 9.5620)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E55 #55221B

analogous

#1B553F #1B4E55 #1B3155

triadic

#1B4E55 #551B4E #4E551B

tetradic

#1B4E55 #3F1B55 #55221B #31551B

square

#1B4E55 #3F1B55 #55221B #31551B

split-complementary

#1B4E55 #551B31 #553F1B

monochromatic

#071517 #0C2327 #1B4E55 #2A7983 #39A3B2

Accessibility & contrast

On white

9.26

#1B4E55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B4E55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E55

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E55	#FFFFFF	#000000	##FFFFFF
##1B4E55	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474B55

Deuteranopia (green-blind)

#3E4455

Tritanopia (blue-blind)

#005250

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4e55;
/* rgb */ color: rgb(27, 78, 85);
/* oklch */ color: oklch(39.3% 0.055 207.7);

Tailwind

colors: {
  custom: {
    50: '#5f7f84',
    500: '#1b4e55',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e55;
$custom-light: #5f7f84;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e55",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 85
  },
  "hsl": {
    "h": 187.241,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.39315,
    "c": 0.05456,
    "h": 207.7
  },
  "luminance": 0.06338
}

Semantic roles & 50–950 ramp

primary

#1B4E55

secondary

#8B4A41

accent

#5E4DDB

background

#F5F7F8

surface

#EAEEEF

border

#C6C9CA

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #1B4E55

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

Preview Lab → · Contrast checker → · Palette generator →