#1B5F84#1B5F84

#1B5F84 is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.2% C 0.089 H 237.5°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F84
RGB	rgb(27, 95, 132)
HSL	hsl(201, 66%, 31%)
HSV	hsv(201, 80%, 52%)
CMYK	cmyk(79.5%, 28%, 0%, 48.2%)
CIE-LAB	lab(37.99, -7.31, -26.56)
CIE-LCH	lch(37.99, 27.55, 254.60°)
OKLab	oklab(46.19% -0.0477 -0.075)
OKLCH	oklch(46.19% 0.089 237.5)
XYZ	xyz(8.7074, 10.0823, 23.3125)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F84 #84401B

analogous

#1B8474 #1B5F84 #1B2A84

triadic

#1B5F84 #841B5F #5F841B

tetradic

#1B5F84 #741B84 #84401B #2A841B

square

#1B5F84 #741B84 #84401B #2A841B

split-complementary

#1B5F84 #841B2A #84741B

monochromatic

#06161E #113A51 #1B5F84 #2584B7 #41A3D8

Accessibility & contrast

On white

6.96

#1B5F84 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1B5F84 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5F84

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F84	#FFFFFF	#000000	##FFFFFF
##1B5F84	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5F86

Deuteranopia (green-blind)

#3F5583

Tritanopia (blue-blind)

#00686C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5f84;
/* rgb */ color: rgb(27, 95, 132);
/* oklch */ color: oklch(46.2% 0.089 237.5);

Tailwind

colors: {
  custom: {
    50: '#698ca8',
    500: '#1b5f84',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f84;
$custom-light: #698ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f84",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 132
  },
  "hsl": {
    "h": 201.143,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.46194,
    "c": 0.08893,
    "h": 237.5
  },
  "luminance": 0.10083
}

Semantic roles & 50–950 ramp

primary

#1B5F84

secondary

#B76C43

accent

#7B3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B5F84

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

Preview Lab → · Contrast checker → · Palette generator →