#1B4E57#1B4E57

#1B4E57 is a dark, muted teal. Relative luminance 0.064; OKLCH L 39.4% C 0.055 H 211.2°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E57
RGB	rgb(27, 78, 87)
HSL	hsl(189, 53%, 22%)
HSV	hsv(189, 69%, 34%)
CMYK	cmyk(69%, 10.3%, 0%, 65.9%)
CIE-LAB	lab(30.33, -13.64, -10.32)
CIE-LCH	lch(30.33, 17.11, 217.11°)
OKLab	oklab(39.4% -0.0473 -0.0286)
OKLCH	oklch(39.4% 0.055 211.2)
XYZ	xyz(4.8960, 6.3694, 9.9864)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E57 #57241B

analogous

#1B5742 #1B4E57 #1B3057

triadic

#1B4E57 #571B4E #4E571B

tetradic

#1B4E57 #421B57 #57241B #30571B

square

#1B4E57 #421B57 #57241B #30571B

split-complementary

#1B4E57 #571B30 #57421B

monochromatic

#071517 #0D2428 #1B4E57 #297886 #38A2B4

Accessibility & contrast

On white

9.23

#1B4E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B4E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E57

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E57	#FFFFFF	#000000	##FFFFFF
##1B4E57	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474B58

Deuteranopia (green-blind)

#3E4557

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4e57;
/* rgb */ color: rgb(27, 78, 87);
/* oklch */ color: oklch(39.4% 0.055 211.2);

Tailwind

colors: {
  custom: {
    50: '#607f86',
    500: '#1b4e57',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e57;
$custom-light: #607f86;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e57",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 87
  },
  "hsl": {
    "h": 189,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.39404,
    "c": 0.05533,
    "h": 211.2
  },
  "luminance": 0.0637
}

Semantic roles & 50–950 ramp

primary

#1B4E57

secondary

#8D4C41

accent

#614CDC

background

#F5F7F8

surface

#EAEEEF

border

#C6C9CA

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #1B4E57

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

Preview Lab → · Contrast checker → · Palette generator →