#15537E#15537E

#15537E is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.6% C 0.094 H 244.2°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#15537E
RGB	rgb(21, 83, 126)
HSL	hsl(205, 71%, 29%)
HSV	hsv(205, 83%, 49%)
CMYK	cmyk(83.3%, 34.1%, 0%, 50.6%)
CIE-LAB	lab(33.67, -2.87, -29.68)
CIE-LCH	lch(33.67, 29.82, 264.49°)
OKLab	oklab(42.63% -0.0407 -0.0843)
OKLCH	oklch(42.63% 0.094 244.2)
XYZ	xyz(7.1669, 7.8514, 20.8724)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15537E #7E4015

analogous

#157E75 #15537E #151F7E

triadic

#15537E #7E1553 #537E15

tetradic

#15537E #75157E #7E4015 #1F7E15

square

#15537E #75157E #7E4015 #1F7E15

split-complementary

#15537E #7E151F #7E7515

monochromatic

#04111A #0C304A #15537E #1E76B2 #3196DD

Accessibility & contrast

On white

8.17

#15537E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#15537E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15537E

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15537E	#FFFFFF	#000000	##FFFFFF
##15537E	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)

#3F5480

Deuteranopia (green-blind)

#304B7D

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #15537e;
/* rgb */ color: rgb(21, 83, 126);
/* oklch */ color: oklch(42.6% 0.094 244.2);

Tailwind

colors: {
  custom: {
    50: '#6583a3',
    500: '#15537e',
    950: '#000000',
  },
}

SCSS

$custom: #15537e;
$custom-light: #6583a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15537e",
  "rgb": {
    "r": 21,
    "g": 83,
    "b": 126
  },
  "hsl": {
    "h": 204.571,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.42631,
    "c": 0.09366,
    "h": 244.2
  },
  "luminance": 0.07852
}

Semantic roles & 50–950 ramp

primary

#15537E

secondary

#B36D3C

accent

#843AEE

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#060A0F

muted

#7A7C7F

Preview Lab

Preview with #15537E

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

Preview Lab → · Contrast checker → · Palette generator →