#1B5D82#1B5D82

#1B5D82 is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.6% C 0.088 H 238.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D82
RGB	rgb(27, 93, 130)
HSL	hsl(202, 66%, 31%)
HSV	hsv(202, 79%, 51%)
CMYK	cmyk(79.2%, 28.5%, 0%, 49%)
CIE-LAB	lab(37.25, -6.85, -26.50)
CIE-LCH	lch(37.25, 27.38, 255.50°)
OKLab	oklab(45.57% -0.0464 -0.0749)
OKLCH	oklch(45.57% 0.088 238.2)
XYZ	xyz(8.3940, 9.6724, 22.5393)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D82 #82401B

analogous

#1B8273 #1B5D82 #1B2A82

triadic

#1B5D82 #821B5D #5D821B

tetradic

#1B5D82 #731B82 #82401B #2A821B

square

#1B5D82 #731B82 #82401B #2A821B

split-complementary

#1B5D82 #821B2A #82731B

monochromatic

#06141D #10394F #1B5D82 #2681B5 #40A1D7

Accessibility & contrast

On white

7.16

#1B5D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1B5D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D82

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D82	#FFFFFF	#000000	##FFFFFF
##1B5D82	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5D84

Deuteranopia (green-blind)

#3D5381

Tritanopia (blue-blind)

#00666A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5d82;
/* rgb */ color: rgb(27, 93, 130);
/* oklch */ color: oklch(45.6% 0.088 238.2);

Tailwind

colors: {
  custom: {
    50: '#688aa6',
    500: '#1b5d82',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d82;
$custom-light: #688aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d82",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 130
  },
  "hsl": {
    "h": 201.553,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.45572,
    "c": 0.0881,
    "h": 238.2
  },
  "luminance": 0.09673
}

Semantic roles & 50–950 ramp

primary

#1B5D82

secondary

#B66C43

accent

#7C3FE9

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5D82

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

Preview Lab → · Contrast checker → · Palette generator →