#1B454D#1B454D

#1B454D is a dark, muted teal. Relative luminance 0.050; OKLCH L 36.4% C 0.048 H 212.0°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B454D
RGB	rgb(27, 69, 77)
HSL	hsl(190, 48%, 20%)
HSV	hsv(190, 65%, 30%)
CMYK	cmyk(64.9%, 10.4%, 0%, 69.8%)
CIE-LAB	lab(26.80, -11.77, -9.20)
CIE-LCH	lch(26.80, 14.94, 218.02°)
OKLab	oklab(36.44% -0.0409 -0.0255)
OKLCH	oklch(36.44% 0.048 212)
XYZ	xyz(3.9191, 5.0247, 7.7831)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B454D #4D231B

analogous

#1B4D3C #1B454D #1B2C4D

triadic

#1B454D #4D1B45 #454D1B

tetradic

#1B454D #3C1B4D #4D231B #2C4D1B

square

#1B454D #3C1B4D #4D231B #2C4D1B

split-complementary

#1B454D #4D1B2C #4D3C1B

monochromatic

#081417 #0B1C20 #1B454D #2B6E7A #3B96A8

Accessibility & contrast

On white

10.47

#1B454D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1B454D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B454D

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B454D	#FFFFFF	#000000	##FFFFFF
##1B454D	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F434D

Deuteranopia (green-blind)

#373D4D

Tritanopia (blue-blind)

#004847

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1b454d;
/* rgb */ color: rgb(27, 69, 77);
/* oklch */ color: oklch(36.4% 0.048 212.0);

Tailwind

colors: {
  custom: {
    50: '#5d787e',
    500: '#1b454d',
    950: '#000000',
  },
}

SCSS

$custom: #1b454d;
$custom-light: #5d787e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b454d",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 77
  },
  "hsl": {
    "h": 189.6,
    "s": 48.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.36442,
    "c": 0.04817,
    "h": 212
  },
  "luminance": 0.05025
}

Semantic roles & 50–950 ramp

primary

#1B454D

secondary

#834B41

accent

#6650D8

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#05090A

muted

#797B7C

Preview Lab

Preview with #1B454D

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

Preview Lab → · Contrast checker → · Palette generator →