#1B648F#1B648F

#1B648F is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 48.1% C 0.098 H 240.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B648F
RGB	rgb(27, 100, 143)
HSL	hsl(202, 68%, 33%)
HSV	hsv(202, 81%, 56%)
CMYK	cmyk(81.1%, 30.1%, 0%, 43.9%)
CIE-LAB	lab(40.13, -6.17, -29.86)
CIE-LCH	lch(40.13, 30.50, 258.33°)
OKLab	oklab(48.07% -0.0489 -0.0846)
OKLCH	oklch(48.07% 0.098 240)
XYZ	xyz(9.9651, 11.3293, 27.6428)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B648F #8F461B

analogous

#1B8F80 #1B648F #1B2A8F

triadic

#1B648F #8F1B64 #648F1B

tetradic

#1B648F #801B8F #8F461B #2A8F1B

square

#1B648F #801B8F #8F461B #2A8F1B

split-complementary

#1B648F #8F1B2A #8F801B

monochromatic

#081C28 #11405C #1B648F #2588C2 #48A5DC

Accessibility & contrast

On white

6.43

#1B648F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#1B648F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B648F

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B648F	#FFFFFF	#000000	##FFFFFF
##1B648F	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506491

Deuteranopia (green-blind)

#405A8E

Tritanopia (blue-blind)

#006F73

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1b648f;
/* rgb */ color: rgb(27, 100, 143);
/* oklch */ color: oklch(48.1% 0.098 240.0);

Tailwind

colors: {
  custom: {
    50: '#6b90b0',
    500: '#1b648f',
    950: '#000000',
  },
}

SCSS

$custom: #1b648f;
$custom-light: #6b90b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b648f",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 143
  },
  "hsl": {
    "h": 202.241,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.48072,
    "c": 0.09767,
    "h": 240
  },
  "luminance": 0.11331
}

Semantic roles & 50–950 ramp

primary

#1B648F

secondary

#BE7448

accent

#7D3DEB

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1B648F

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

Preview Lab → · Contrast checker → · Palette generator →