#1C648B#1C648B

#1C648B is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.093 H 237.6°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#1C648B
RGB	rgb(28, 100, 139)
HSL	hsl(201, 66%, 33%)
HSV	hsv(201, 80%, 55%)
CMYK	cmyk(79.9%, 28.1%, 0%, 45.5%)
CIE-LAB	lab(39.96, -7.57, -27.73)
CIE-LCH	lch(39.96, 28.74, 254.72°)
OKLab	oklab(47.88% -0.0498 -0.0783)
OKLCH	oklch(47.88% 0.093 237.6)
XYZ	xyz(9.6944, 11.2241, 26.0766)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C648B #8B431C

analogous

#1C8B7A #1C648B #1C2D8B

triadic

#1C648B #8B1C64 #648B1C

tetradic

#1C648B #7A1C8B #8B431C #2D8B1C

square

#1C648B #7A1C8B #8B431C #2D8B1C

split-complementary

#1C648B #8B1C2D #8B7A1C

monochromatic

#071B25 #123F58 #1C648B #2689BE #47A6DA

Accessibility & contrast

On white

6.47

#1C648B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#1C648B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C648B

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C648B	#FFFFFF	#000000	##FFFFFF
##1C648B	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51648D

Deuteranopia (green-blind)

#425A8A

Tritanopia (blue-blind)

#006E71

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1c648b;
/* rgb */ color: rgb(28, 100, 139);
/* oklch */ color: oklch(47.9% 0.093 237.6);

Tailwind

colors: {
  custom: {
    50: '#6a90ad',
    500: '#1c648b',
    950: '#000000',
  },
}

SCSS

$custom: #1c648b;
$custom-light: #6a90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c648b",
  "rgb": {
    "r": 28,
    "g": 100,
    "b": 139
  },
  "hsl": {
    "h": 201.081,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.47875,
    "c": 0.09282,
    "h": 237.6
  },
  "luminance": 0.11225
}

Semantic roles & 50–950 ramp

primary

#1C648B

secondary

#BC7047

accent

#7A3EE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1C648B

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

Preview Lab → · Contrast checker → · Palette generator →