#1B4A4D#1B4A4D

#1B4A4D is a dark, muted teal. Relative luminance 0.057; OKLCH L 37.8% C 0.051 H 201.0°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A4D
RGB	rgb(27, 74, 77)
HSL	hsl(184, 48%, 20%)
HSV	hsv(184, 65%, 30%)
CMYK	cmyk(64.9%, 3.9%, 0%, 69.8%)
CIE-LAB	lab(28.55, -14.72, -6.56)
CIE-LCH	lch(28.55, 16.11, 204.04°)
OKLab	oklab(37.85% -0.0472 -0.0182)
OKLCH	oklch(37.85% 0.051 201)
XYZ	xyz(4.2398, 5.6660, 7.8899)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A4D #4D1E1B

analogous

#1B4D37 #1B4A4D #1B314D

triadic

#1B4A4D #4D1B4A #4A4D1B

tetradic

#1B4A4D #371B4D #4D1E1B #314D1B

square

#1B4A4D #371B4D #4D1E1B #314D1B

split-complementary

#1B4A4D #4D1B31 #4D371B

monochromatic

#081617 #0B1E20 #1B4A4D #2B767A #3BA1A8

Accessibility & contrast

On white

9.84

#1B4A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1B4A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A4D

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A4D	#FFFFFF	#000000	##FFFFFF
##1B4A4D	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44474D

Deuteranopia (green-blind)

#3D414D

Tritanopia (blue-blind)

#004D4B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b4a4d;
/* rgb */ color: rgb(27, 74, 77);
/* oklch */ color: oklch(37.8% 0.051 201.0);

Tailwind

colors: {
  custom: {
    50: '#5e7c7e',
    500: '#1b4a4d',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a4d;
$custom-light: #5e7c7e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a4d",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 77
  },
  "hsl": {
    "h": 183.6,
    "s": 48.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.37849,
    "c": 0.0506,
    "h": 201
  },
  "luminance": 0.05666
}

Semantic roles & 50–950 ramp

primary

#1B4A4D

secondary

#834541

accent

#5850D8

background

#F5F7F7

surface

#E9EEEE

border

#C5C9C9

text

#05090A

muted

#797B7C

Preview Lab

Preview with #1B4A4D

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

Preview Lab → · Contrast checker → · Palette generator →