#1B453B#1B453B

#1B453B is a dark, muted teal. Relative luminance 0.048; OKLCH L 35.7% C 0.050 H 175.4°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B453B
RGB	rgb(27, 69, 59)
HSL	hsl(166, 44%, 19%)
HSV	hsv(166, 61%, 27%)
CMYK	cmyk(60.9%, 0%, 14.5%, 72.9%)
CIE-LAB	lab(26.17, -17.52, 1.63)
CIE-LCH	lch(26.17, 17.60, 174.67°)
OKLab	oklab(35.72% -0.0501 0.0041)
OKLCH	oklch(35.72% 0.05 175.4)
XYZ	xyz(3.3692, 4.8047, 4.8867)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B453B #451B25

analogous

#1B4526 #1B453B #1B3A45

triadic

#1B453B #3B1B45 #453B1B

tetradic

#1B453B #261B45 #451B25 #3A451B

square

#1B453B #261B45 #451B25 #3A451B

split-complementary

#1B453B #451B3A #45261B

monochromatic

#091613 #0A1915 #1B453B #2C7161 #3D9D86

Accessibility & contrast

On white

10.71

#1B453B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1B453B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B453B

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B453B	#FFFFFF	#000000	##FFFFFF
##1B453B	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43413B

Deuteranopia (green-blind)

#3C3C3C

Tritanopia (blue-blind)

#054642

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1b453b;
/* rgb */ color: rgb(27, 69, 59);
/* oklch */ color: oklch(35.7% 0.050 175.4);

Tailwind

colors: {
  custom: {
    50: '#5c7970',
    500: '#1b453b',
    950: '#000000',
  },
}

SCSS

$custom: #1b453b;
$custom-light: #5c7970;
$custom-dark: #000000;

JSON

{
  "hex": "#1b453b",
  "rgb": {
    "r": 27,
    "g": 69,
    "b": 59
  },
  "hsl": {
    "h": 165.714,
    "s": 43.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.3572,
    "c": 0.05029,
    "h": 175.4
  },
  "luminance": 0.04805
}

Semantic roles & 50–950 ramp

primary

#1B453B

secondary

#7B414F

accent

#5473D3

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040907

muted

#797B7A

Preview Lab

Preview with #1B453B

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

Preview Lab → · Contrast checker → · Palette generator →