#18507E#18507E

#18507E is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.0% C 0.096 H 247.7°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#18507E
RGB	rgb(24, 80, 126)
HSL	hsl(207, 68%, 29%)
HSV	hsv(207, 81%, 49%)
CMYK	cmyk(81%, 36.5%, 0%, 50.6%)
CIE-LAB	lab(32.78, -0.59, -31.08)
CIE-LCH	lch(32.78, 31.09, 268.92°)
OKLab	oklab(41.95% -0.0363 -0.0884)
OKLCH	oklch(41.95% 0.096 247.7)
XYZ	xyz(7.0098, 7.4370, 20.8007)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18507E #7E4618

analogous

#187E79 #18507E #181D7E

triadic

#18507E #7E1850 #507E18

tetradic

#18507E #79187E #7E4618 #1D7E18

square

#18507E #79187E #7E4618 #1D7E18

split-complementary

#18507E #7E181D #7E7918

monochromatic

#05101A #0E2F4B #18507E #2271B1 #3790D9

Accessibility & contrast

On white

8.44

#18507E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#18507E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18507E

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18507E	#FFFFFF	#000000	##FFFFFF
##18507E	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5280

Deuteranopia (green-blind)

#2C497D

Tritanopia (blue-blind)

#005B61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18507e;
/* rgb */ color: rgb(24, 80, 126);
/* oklch */ color: oklch(42.0% 0.096 247.7);

Tailwind

colors: {
  custom: {
    50: '#6680a3',
    500: '#18507e',
    950: '#000000',
  },
}

SCSS

$custom: #18507e;
$custom-light: #6680a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18507e",
  "rgb": {
    "r": 24,
    "g": 80,
    "b": 126
  },
  "hsl": {
    "h": 207.059,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.41951,
    "c": 0.09562,
    "h": 247.7
  },
  "luminance": 0.07438
}

Semantic roles & 50–950 ramp

primary

#18507E

secondary

#B2733F

accent

#8B3DEB

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #18507E

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

Preview Lab → · Contrast checker → · Palette generator →