#15657B#15657B

#15657B is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.2% C 0.080 H 221.5°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#15657B
RGB	rgb(21, 101, 123)
HSL	hsl(193, 71%, 28%)
HSV	hsv(193, 83%, 48%)
CMYK	cmyk(82.9%, 17.9%, 0%, 51.8%)
CIE-LAB	lab(39.40, -14.90, -18.90)
CIE-LCH	lch(39.40, 24.06, 231.75°)
OKLab	oklab(47.15% -0.0599 -0.0529)
OKLCH	oklch(47.15% 0.08 221.5)
XYZ	xyz(8.5366, 10.8958, 20.3882)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15657B #7B2B15

analogous

#157B5E #15657B #15327B

triadic

#15657B #7B1565 #657B15

tetradic

#15657B #5E157B #7B2B15 #327B15

square

#15657B #5E157B #7B2B15 #327B15

split-complementary

#15657B #7B1532 #7B5E15

monochromatic

#04151A #0C3A47 #15657B #1E90AF #2FB6DB

Accessibility & contrast

On white

6.61

#15657B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#15657B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #15657B

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15657B	#FFFFFF	#000000	##FFFFFF
##15657B	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58627C

Deuteranopia (green-blind)

#4B597B

Tritanopia (blue-blind)

#006C6C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #15657b;
/* rgb */ color: rgb(21, 101, 123);
/* oklch */ color: oklch(47.2% 0.080 221.5);

Tailwind

colors: {
  custom: {
    50: '#6691a1',
    500: '#15657b',
    950: '#000000',
  },
}

SCSS

$custom: #15657b;
$custom-light: #6691a1;
$custom-dark: #000000;

JSON

{
  "hex": "#15657b",
  "rgb": {
    "r": 21,
    "g": 101,
    "b": 123
  },
  "hsl": {
    "h": 192.941,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.47152,
    "c": 0.07997,
    "h": 221.5
  },
  "luminance": 0.10897
}

Semantic roles & 50–950 ramp

primary

#15657B

secondary

#B0553B

accent

#613AEE

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #15657B

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

Preview Lab → · Contrast checker → · Palette generator →