#15437D#15437D

#15437D is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.6% C 0.110 H 256.2°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#15437D
RGB	rgb(21, 67, 125)
HSL	hsl(213, 71%, 29%)
HSV	hsv(213, 83%, 49%)
CMYK	cmyk(83.2%, 46.4%, 0%, 51%)
CIE-LAB	lab(28.52, 7.37, -37.25)
CIE-LCH	lch(28.52, 37.98, 281.19°)
OKLab	oklab(38.58% -0.0262 -0.1069)
OKLCH	oklch(38.58% 0.11 256.2)
XYZ	xyz(6.0167, 5.6537, 20.1722)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15437D #7D4F15

analogous

#15777D #15437D #1B157D

triadic

#15437D #7D1543 #437D15

tetradic

#15437D #7D1577 #7D4F15 #157D1B

square

#15437D #7D1577 #7D4F15 #157D1B

split-complementary

#15437D #7D1B15 #777D15

monochromatic

#040E1A #0C2749 #15437D #1E5FB1 #307CDC

Accessibility & contrast

On white

9.86

#15437D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#15437D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15437D

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15437D	#FFFFFF	#000000	##FFFFFF
##15437D	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25487F

Deuteranopia (green-blind)

#0E3F7C

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #15437d;
/* rgb */ color: rgb(21, 67, 125);
/* oklch */ color: oklch(38.6% 0.110 256.2);

Tailwind

colors: {
  custom: {
    50: '#6576a3',
    500: '#15437d',
    950: '#000000',
  },
}

SCSS

$custom: #15437d;
$custom-light: #6576a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15437d",
  "rgb": {
    "r": 21,
    "g": 67,
    "b": 125
  },
  "hsl": {
    "h": 213.462,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38581,
    "c": 0.11003,
    "h": 256.2
  },
  "luminance": 0.05654
}

Semantic roles & 50–950 ramp

primary

#15437D

secondary

#B27E3C

accent

#9E3AEE

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #15437D

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

Preview Lab → · Contrast checker → · Palette generator →