#155571#155571

#155571 is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.4% C 0.077 H 232.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#155571
RGB	rgb(21, 85, 113)
HSL	hsl(198, 69%, 26%)
HSV	hsv(198, 81%, 44%)
CMYK	cmyk(81.4%, 24.8%, 0%, 55.7%)
CIE-LAB	lab(33.66, -9.21, -21.62)
CIE-LCH	lch(33.66, 23.50, 246.93°)
OKLab	oklab(42.41% -0.0474 -0.0609)
OKLCH	oklch(42.41% 0.077 232.1)
XYZ	xyz(6.5372, 7.8479, 16.7898)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155571 #713115

analogous

#15715F #155571 #152771

triadic

#155571 #711555 #557115

tetradic

#155571 #5F1571 #713115 #277115

square

#155571 #5F1571 #713115 #277115

split-complementary

#155571 #711527 #715F15

monochromatic

#05131A #0B2E3D #155571 #1F7CA5 #29A2D7

Accessibility & contrast

On white

8.17

#155571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#155571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155571

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155571	#FFFFFF	#000000	##FFFFFF
##155571	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475472

Deuteranopia (green-blind)

#3B4B71

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #155571;
/* rgb */ color: rgb(21, 85, 113);
/* oklch */ color: oklch(42.4% 0.077 232.1);

Tailwind

colors: {
  custom: {
    50: '#63849a',
    500: '#155571',
    950: '#000000',
  },
}

SCSS

$custom: #155571;
$custom-light: #63849a;
$custom-dark: #000000;

JSON

{
  "hex": "#155571",
  "rgb": {
    "r": 21,
    "g": 85,
    "b": 113
  },
  "hsl": {
    "h": 198.261,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.42407,
    "c": 0.07715,
    "h": 232.1
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary

#155571

secondary

#A75C3B

accent

#723CEB

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155571

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

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