#1B648B#1B648B

#1B648B is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.093 H 237.4°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B648B
RGB	rgb(27, 100, 139)
HSL	hsl(201, 67%, 33%)
HSV	hsv(201, 81%, 55%)
CMYK	cmyk(80.6%, 28.1%, 0%, 45.5%)
CIE-LAB	lab(39.93, -7.69, -27.76)
CIE-LCH	lch(39.93, 28.81, 254.52°)
OKLab	oklab(47.85% -0.0502 -0.0785)
OKLCH	oklch(47.85% 0.093 237.4)
XYZ	xyz(9.6675, 11.2103, 26.0754)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B648B #8B421B

analogous

#1B8B7A #1B648B #1B2C8B

triadic

#1B648B #8B1B64 #648B1B

tetradic

#1B648B #7A1B8B #8B421B #2C8B1B

square

#1B648B #7A1B8B #8B421B #2C8B1B

split-complementary

#1B648B #8B1B2C #8B7A1B

monochromatic

#071A25 #113F58 #1B648B #2589BE #45A7DB

Accessibility & contrast

On white

6.48

#1B648B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#1B648B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B648B

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B648B	#FFFFFF	#000000	##FFFFFF
##1B648B	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51648D

Deuteranopia (green-blind)

#42598A

Tritanopia (blue-blind)

#006E71

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1b648b;
/* rgb */ color: rgb(27, 100, 139);
/* oklch */ color: oklch(47.9% 0.093 237.4);

Tailwind

colors: {
  custom: {
    50: '#6a90ad',
    500: '#1b648b',
    950: '#000000',
  },
}

SCSS

$custom: #1b648b;
$custom-light: #6a90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b648b",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 139
  },
  "hsl": {
    "h": 200.893,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.4785,
    "c": 0.09318,
    "h": 237.4
  },
  "luminance": 0.11211
}

Semantic roles & 50–950 ramp

primary

#1B648B

secondary

#BC6F45

accent

#7A3DEA

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #1B648B

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

Preview Lab → · Contrast checker → · Palette generator →