#1B453F#1B453F

#1B453F is a dark, muted teal. Relative luminance 0.048; OKLCH L 35.9% C 0.048 H 182.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B453F
RGB	rgb(27, 69, 63)
HSL	hsl(171, 44%, 19%)
HSV	hsv(171, 61%, 27%)
CMYK	cmyk(60.9%, 0%, 8.7%, 72.9%)
CIE-LAB	lab(26.30, -16.33, -0.80)
CIE-LCH	lch(26.30, 16.35, 182.81°)
OKLab	oklab(35.86% -0.048 -0.0024)
OKLCH	oklch(35.86% 0.048 182.9)
XYZ	xyz(3.4769, 4.8478, 5.4542)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B453F #451B21

analogous

#1B452A #1B453F #1B3645

triadic

#1B453F #3F1B45 #453F1B

tetradic

#1B453F #2A1B45 #451B21 #36451B

square

#1B453F #2A1B45 #451B21 #36451B

split-complementary

#1B453F #451B36 #452A1B

monochromatic

#091614 #0A1917 #1B453F #2C7167 #3D9D8F

Accessibility & contrast

On white

10.66

#1B453F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1B453F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B453F

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B453F	#FFFFFF	#000000	##FFFFFF
##1B453F	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42413F

Deuteranopia (green-blind)

#3B3C40

Tritanopia (blue-blind)

#014643

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b453f;
/* rgb */ color: rgb(27, 69, 63);
/* oklch */ color: oklch(35.9% 0.048 182.9);

Tailwind

colors: {
  custom: {
    50: '#5c7974',
    500: '#1b453f',
    950: '#000000',
  },
}

SCSS

$custom: #1b453f;
$custom-light: #5c7974;
$custom-dark: #000000;

JSON

{
  "hex": "#1b453f",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 63
  },
  "hsl": {
    "h": 171.429,
    "s": 43.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.35863,
    "c": 0.04803,
    "h": 182.9
  },
  "luminance": 0.04848
}

Semantic roles & 50–950 ramp

primary

#1B453F

secondary

#7B4149

accent

#5466D3

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040908

muted

#797B7B

Preview Lab

Preview with #1B453F

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

Preview Lab → · Contrast checker → · Palette generator →