#1B5F85#1B5F85

#1B5F85 is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.2% C 0.090 H 238.3°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F85
RGB	rgb(27, 95, 133)
HSL	hsl(202, 66%, 31%)
HSV	hsv(202, 80%, 52%)
CMYK	cmyk(79.7%, 28.6%, 0%, 47.8%)
CIE-LAB	lab(38.04, -6.93, -27.09)
CIE-LCH	lch(38.04, 27.97, 255.64°)
OKLab	oklab(46.25% -0.0474 -0.0766)
OKLCH	oklch(46.25% 0.09 238.3)
XYZ	xyz(8.7762, 10.1098, 23.6746)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F85 #85411B

analogous

#1B8576 #1B5F85 #1B2A85

triadic

#1B5F85 #851B5F #5F851B

tetradic

#1B5F85 #761B85 #85411B #2A851B

square

#1B5F85 #761B85 #85411B #2A851B

split-complementary

#1B5F85 #851B2A #85761B

monochromatic

#06161F #113B52 #1B5F85 #2583B8 #42A3D9

Accessibility & contrast

On white

6.95

#1B5F85 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1B5F85 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5F85

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F85	#FFFFFF	#000000	##FFFFFF
##1B5F85	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5F87

Deuteranopia (green-blind)

#3F5584

Tritanopia (blue-blind)

#00696C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b5f85;
/* rgb */ color: rgb(27, 95, 133);
/* oklch */ color: oklch(46.2% 0.090 238.3);

Tailwind

colors: {
  custom: {
    50: '#698ca8',
    500: '#1b5f85',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f85;
$custom-light: #698ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f85",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 133
  },
  "hsl": {
    "h": 201.509,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.46249,
    "c": 0.09004,
    "h": 238.3
  },
  "luminance": 0.10111
}

Semantic roles & 50–950 ramp

primary

#1B5F85

secondary

#B86D44

accent

#7C3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B5F85

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

Preview Lab → · Contrast checker → · Palette generator →