#1B645C#1B645C

#1B645C is a mid, moderate teal. Relative luminance 0.101; OKLCH L 45.7% C 0.071 H 184.5°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#1B645C
RGB	rgb(27, 100, 92)
HSL	hsl(173, 57%, 25%)
HSV	hsv(173, 73%, 39%)
CMYK	cmyk(73%, 0%, 8%, 60.8%)
CIE-LAB	lab(38.06, -24.02, -1.91)
CIE-LCH	lch(38.06, 24.09, 184.55°)
OKLab	oklab(45.72% -0.0708 -0.0055)
OKLCH	oklch(45.72% 0.071 184.5)
XYZ	xyz(6.9400, 10.1193, 11.7106)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B645C #641B23

analogous

#1B6438 #1B645C #1B4764

triadic

#1B645C #5C1B64 #645C1B

tetradic

#1B645C #381B64 #641B23 #47641B

square

#1B645C #381B64 #641B23 #47641B

split-complementary

#1B645C #641B47 #64381B

monochromatic

#071816 #0E3430 #1B645C #289488 #35C4B5

Accessibility & contrast

On white

6.94

#1B645C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1B645C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B645C

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B645C	#FFFFFF	#000000	##FFFFFF
##1B645C	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5E5C

Deuteranopia (green-blind)

#54565D

Tritanopia (blue-blind)

#006661

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b645c;
/* rgb */ color: rgb(27, 100, 92);
/* oklch */ color: oklch(45.7% 0.071 184.5);

Tailwind

colors: {
  custom: {
    50: '#63908a',
    500: '#1b645c',
    950: '#000000',
  },
}

SCSS

$custom: #1b645c;
$custom-light: #63908a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b645c",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 92
  },
  "hsl": {
    "h": 173.425,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.4572,
    "c": 0.07101,
    "h": 184.5
  },
  "luminance": 0.1012
}

Semantic roles & 50–950 ramp

primary

#1B645C

secondary

#99414B

accent

#4758E1

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060C0B

muted

#7A7D7C

Preview Lab

Preview with #1B645C

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

Preview Lab → · Contrast checker → · Palette generator →