#17437B#17437B

#17437B is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.5% C 0.107 H 256.2°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#17437B
RGB	rgb(23, 67, 123)
HSL	hsl(214, 68%, 29%)
HSV	hsv(214, 81%, 48%)
CMYK	cmyk(81.3%, 45.5%, 0%, 51.8%)
CIE-LAB	lab(28.45, 6.77, -36.12)
CIE-LCH	lch(28.45, 36.74, 280.62°)
OKLab	oklab(38.5% -0.0254 -0.1035)
OKLCH	oklch(38.5% 0.107 256.2)
XYZ	xyz(5.9343, 5.6258, 19.5082)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17437B #7B4F17

analogous

#17757B #17437B #1D177B

triadic

#17437B #7B1743 #437B17

tetradic

#17437B #7B1775 #7B4F17 #177B1D

square

#17437B #7B1775 #7B4F17 #177B1D

split-complementary

#17437B #7B1D17 #757B17

monochromatic

#050E1A #0D2747 #17437B #215FAF #337CD9

Accessibility & contrast

On white

9.88

#17437B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#17437B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17437B

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17437B	#FFFFFF	#000000	##FFFFFF
##17437B	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26487D

Deuteranopia (green-blind)

#133F7A

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #17437b;
/* rgb */ color: rgb(23, 67, 123);
/* oklch */ color: oklch(38.5% 0.107 256.2);

Tailwind

colors: {
  custom: {
    50: '#6576a1',
    500: '#17437b',
    950: '#000000',
  },
}

SCSS

$custom: #17437b;
$custom-light: #6576a1;
$custom-dark: #000000;

JSON

{
  "hex": "#17437b",
  "rgb": {
    "r": 23,
    "g": 67,
    "b": 123
  },
  "hsl": {
    "h": 213.6,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38499,
    "c": 0.10656,
    "h": 256.2
  },
  "luminance": 0.05627
}

Semantic roles & 50–950 ramp

primary

#17437B

secondary

#B07E3E

accent

#9E3CEB

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #17437B

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

Preview Lab → · Contrast checker → · Palette generator →