#1B647F#1B647F

#1B647F is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.2% C 0.081 H 227.6°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B647F
RGB	rgb(27, 100, 127)
HSL	hsl(196, 65%, 30%)
HSV	hsv(196, 79%, 50%)
CMYK	cmyk(78.7%, 21.3%, 0%, 50.2%)
CIE-LAB	lab(39.38, -12.16, -21.36)
CIE-LCH	lch(39.38, 24.58, 240.35°)
OKLab	oklab(47.22% -0.0547 -0.06)
OKLCH	oklch(47.22% 0.081 227.6)
XYZ	xyz(8.8384, 10.8786, 21.7085)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B647F #7F361B

analogous

#1B7F68 #1B647F #1B327F

triadic

#1B647F #7F1B64 #647F1B

tetradic

#1B647F #681B7F #7F361B #327F1B

square

#1B647F #681B7F #7F361B #327F1B

split-complementary

#1B647F #7F1B32 #7F681B

monochromatic

#06151A #103C4D #1B647F #268CB1 #3EADD6

Accessibility & contrast

On white

6.61

#1B647F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#1B647F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B647F

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B647F	#FFFFFF	#000000	##FFFFFF
##1B647F	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)

#566280

Deuteranopia (green-blind)

#48597F

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1b647f;
/* rgb */ color: rgb(27, 100, 127);
/* oklch */ color: oklch(47.2% 0.081 227.6);

Tailwind

colors: {
  custom: {
    50: '#6890a4',
    500: '#1b647f',
    950: '#000000',
  },
}

SCSS

$custom: #1b647f;
$custom-light: #6890a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b647f",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 127
  },
  "hsl": {
    "h": 196.2,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.47222,
    "c": 0.08121,
    "h": 227.6
  },
  "luminance": 0.1088
}

Semantic roles & 50–950 ramp

primary

#1B647F

secondary

#B36143

accent

#6D40E8

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B647F

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

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