#1B535A#1B535A

#1B535A is a dark, muted teal. Relative luminance 0.072; OKLCH L 40.9% C 0.058 H 206.8°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B535A
RGB	rgb(27, 83, 90)
HSL	hsl(187, 54%, 23%)
HSV	hsv(187, 70%, 35%)
CMYK	cmyk(70%, 7.8%, 0%, 64.7%)
CIE-LAB	lab(32.16, -15.50, -9.45)
CIE-LCH	lch(32.16, 18.15, 211.38°)
OKLab	oklab(40.92% -0.0519 -0.0262)
OKLCH	oklch(40.92% 0.058 206.8)
XYZ	xyz(5.3899, 7.1571, 10.7683)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B535A #5A221B

analogous

#1B5A41 #1B535A #1B335A

triadic

#1B535A #5A1B53 #535A1B

tetradic

#1B535A #411B5A #5A221B #335A1B

square

#1B535A #411B5A #5A221B #335A1B

split-complementary

#1B535A #5A1B33 #5A411B

monochromatic

#071618 #0D282B #1B535A #297E89 #37AAB8

Accessibility & contrast

On white

8.64

#1B535A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B535A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B535A

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B535A	#FFFFFF	#000000	##FFFFFF
##1B535A	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C505A

Deuteranopia (green-blind)

#42495A

Tritanopia (blue-blind)

#005755

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b535a;
/* rgb */ color: rgb(27, 83, 90);
/* oklch */ color: oklch(40.9% 0.058 206.8);

Tailwind

colors: {
  custom: {
    50: '#618388',
    500: '#1b535a',
    950: '#000000',
  },
}

SCSS

$custom: #1b535a;
$custom-light: #618388;
$custom-dark: #000000;

JSON

{
  "hex": "#1b535a",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 90
  },
  "hsl": {
    "h": 186.667,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.40921,
    "c": 0.05817,
    "h": 206.8
  },
  "luminance": 0.07158
}

Semantic roles & 50–950 ramp

primary

#1B535A

secondary

#904A41

accent

#5B4BDD

background

#F6F8F8

surface

#EBEFEF

border

#C6CACA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1B535A

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

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