#155A6A#155A6A

#155A6A is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.4% C 0.070 H 217.3°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#155A6A
RGB	rgb(21, 90, 106)
HSL	hsl(191, 67%, 25%)
HSV	hsv(191, 80%, 42%)
CMYK	cmyk(80.2%, 15.1%, 0%, 58.4%)
CIE-LAB	lab(35.03, -14.78, -15.16)
CIE-LCH	lch(35.03, 21.17, 225.71°)
OKLab	oklab(43.4% -0.0556 -0.0423)
OKLCH	oklch(43.4% 0.07 217.3)
XYZ	xyz(6.5658, 8.5116, 14.9297)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A6A #6A2515

analogous

#156A4F #155A6A #15306A

triadic

#155A6A #6A155A #5A6A15

tetradic

#155A6A #4F156A #6A2515 #306A15

square

#155A6A #4F156A #6A2515 #306A15

split-complementary

#155A6A #6A1530 #6A4F15

monochromatic

#05161A #0B2F37 #155A6A #1F859D #29B1D0

Accessibility & contrast

On white

7.77

#155A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#155A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A6A

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A6A	#FFFFFF	#000000	##FFFFFF
##155A6A	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50576B

Deuteranopia (green-blind)

#444F6A

Tritanopia (blue-blind)

#00605F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155a6a;
/* rgb */ color: rgb(21, 90, 106);
/* oklch */ color: oklch(43.4% 0.070 217.3);

Tailwind

colors: {
  custom: {
    50: '#628894',
    500: '#155a6a',
    950: '#000000',
  },
}

SCSS

$custom: #155a6a;
$custom-light: #628894;
$custom-dark: #000000;

JSON

{
  "hex": "#155a6a",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 106
  },
  "hsl": {
    "h": 191.294,
    "s": 66.929,
    "l": 24.902
  },
  "oklch": {
    "l": 0.43396,
    "c": 0.0699,
    "h": 217.3
  },
  "luminance": 0.08512
}

Semantic roles & 50–950 ramp

primary

#155A6A

secondary

#A14D3A

accent

#5E3EEA

background

#F6F8F9

surface

#EBF0F1

border

#C6CBCB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #155A6A

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

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