#1B5F82#1B5F82

#1B5F82 is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 46.1% C 0.087 H 236.0°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F82
RGB	rgb(27, 95, 130)
HSL	hsl(200, 66%, 31%)
HSV	hsv(200, 79%, 51%)
CMYK	cmyk(79.2%, 26.9%, 0%, 49%)
CIE-LAB	lab(37.89, -8.07, -25.50)
CIE-LCH	lch(37.89, 26.74, 252.43°)
OKLab	oklab(46.09% -0.0484 -0.0719)
OKLCH	oklch(46.09% 0.087 236)
XYZ	xyz(8.5719, 10.0281, 22.5986)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F82 #823E1B

analogous

#1B8271 #1B5F82 #1B2C82

triadic

#1B5F82 #821B5F #5F821B

tetradic

#1B5F82 #711B82 #823E1B #2C821B

square

#1B5F82 #711B82 #823E1B #2C821B

split-complementary

#1B5F82 #821B2C #82711B

monochromatic

#06151D #103A4F #1B5F82 #2684B5 #40A4D7

Accessibility & contrast

On white

6.99

#1B5F82 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#1B5F82 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5F82

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F82	#FFFFFF	#000000	##FFFFFF
##1B5F82	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5F84

Deuteranopia (green-blind)

#405581

Tritanopia (blue-blind)

#00686B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5f82;
/* rgb */ color: rgb(27, 95, 130);
/* oklch */ color: oklch(46.1% 0.087 236.0);

Tailwind

colors: {
  custom: {
    50: '#688ca6',
    500: '#1b5f82',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f82;
$custom-light: #688ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f82",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 130
  },
  "hsl": {
    "h": 200.388,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.46085,
    "c": 0.08674,
    "h": 236
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#1B5F82

secondary

#B66A43

accent

#793FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B5F82

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

Preview Lab → · Contrast checker → · Palette generator →