#1B4E53#1B4E53

#1B4E53 is a dark, muted teal. Relative luminance 0.063; OKLCH L 39.2% C 0.054 H 204.2°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E53
RGB	rgb(27, 78, 83)
HSL	hsl(185, 51%, 22%)
HSV	hsv(185, 67%, 33%)
CMYK	cmyk(67.5%, 6%, 0%, 67.5%)
CIE-LAB	lab(30.17, -15.01, -8.00)
CIE-LCH	lch(30.17, 17.01, 208.04°)
OKLab	oklab(39.23% -0.0492 -0.0221)
OKLCH	oklch(39.23% 0.054 204.2)
XYZ	xyz(4.7371, 6.3058, 9.1494)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E53 #53201B

analogous

#1B533C #1B4E53 #1B3253

triadic

#1B4E53 #531B4E #4E531B

tetradic

#1B4E53 #3C1B53 #53201B #32531B

square

#1B4E53 #3C1B53 #53201B #32531B

split-complementary

#1B4E53 #531B32 #533C1B

monochromatic

#081617 #0C2325 #1B4E53 #2A7981 #39A5AF

Accessibility & contrast

On white

9.29

#1B4E53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B4E53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E53

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E53	#FFFFFF	#000000	##FFFFFF
##1B4E53	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484B53

Deuteranopia (green-blind)

#3F4453

Tritanopia (blue-blind)

#00514F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4e53;
/* rgb */ color: rgb(27, 78, 83);
/* oklch */ color: oklch(39.2% 0.054 204.2);

Tailwind

colors: {
  custom: {
    50: '#5f7f83',
    500: '#1b4e53',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e53;
$custom-light: #5f7f83;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e53",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 83
  },
  "hsl": {
    "h": 185.357,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.39228,
    "c": 0.054,
    "h": 204.2
  },
  "luminance": 0.06306
}

Semantic roles & 50–950 ramp

primary

#1B4E53

secondary

#894741

accent

#5A4DDA

background

#F5F7F8

surface

#EAEEEF

border

#C6C9CA

text

#050A0A

muted

#797C7C

Preview Lab

Preview with #1B4E53

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

Preview Lab → · Contrast checker → · Palette generator →