#15536B#15536B

#15536B is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.6% C 0.072 H 228.8°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#15536B
RGB	rgb(21, 83, 107)
HSL	hsl(197, 67%, 25%)
HSV	hsv(197, 80%, 42%)
CMYK	cmyk(80.4%, 22.4%, 0%, 58%)
CIE-LAB	lab(32.72, -10.29, -19.34)
CIE-LCH	lch(32.72, 21.91, 242.00°)
OKLab	oklab(41.56% -0.0476 -0.0543)
OKLCH	oklch(41.56% 0.072 228.8)
XYZ	xyz(6.0553, 7.4068, 15.0176)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15536B #6B2D15

analogous

#156B58 #15536B #15286B

triadic

#15536B #6B1553 #536B15

tetradic

#15536B #58156B #6B2D15 #286B15

square

#15536B #58156B #6B2D15 #286B15

split-complementary

#15536B #6B1528 #6B5815

monochromatic

#05141A #0B2B38 #15536B #1F7B9E #29A2D1

Accessibility & contrast

On white

8.46

#15536B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#15536B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15536B

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15536B	#FFFFFF	#000000	##FFFFFF
##15536B	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46526C

Deuteranopia (green-blind)

#3B496B

Tritanopia (blue-blind)

#005A5B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #15536b;
/* rgb */ color: rgb(21, 83, 107);
/* oklch */ color: oklch(41.6% 0.072 228.8);

Tailwind

colors: {
  custom: {
    50: '#618395',
    500: '#15536b',
    950: '#000000',
  },
}

SCSS

$custom: #15536b;
$custom-light: #618395;
$custom-dark: #000000;

JSON

{
  "hex": "#15536b",
  "rgb": {
    "r": 21,
    "g": 83,
    "b": 107
  },
  "hsl": {
    "h": 196.744,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.41557,
    "c": 0.07227,
    "h": 228.8
  },
  "luminance": 0.07407
}

Semantic roles & 50–950 ramp

primary

#15536B

secondary

#A2573A

accent

#6E3EEA

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #15536B

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

Preview Lab → · Contrast checker → · Palette generator →