#1B5D84#1B5D84

#1B5D84 is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.7% C 0.090 H 239.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D84
RGB	rgb(27, 93, 132)
HSL	hsl(202, 66%, 31%)
HSV	hsv(202, 80%, 52%)
CMYK	cmyk(79.5%, 29.5%, 0%, 48.2%)
CIE-LAB	lab(37.35, -6.09, -27.57)
CIE-LCH	lch(37.35, 28.23, 257.54°)
OKLab	oklab(45.68% -0.0457 -0.078)
OKLCH	oklch(45.68% 0.09 239.6)
XYZ	xyz(8.5296, 9.7266, 23.2532)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D84 #84421B

analogous

#1B8476 #1B5D84 #1B2884

triadic

#1B5D84 #841B5D #5D841B

tetradic

#1B5D84 #761B84 #84421B #28841B

square

#1B5D84 #761B84 #84421B #28841B

split-complementary

#1B5D84 #841B28 #84761B

monochromatic

#06151E #113951 #1B5D84 #2581B7 #41A0D8

Accessibility & contrast

On white

7.13

#1B5D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#1B5D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D84

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D84	#FFFFFF	#000000	##FFFFFF
##1B5D84	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5D86

Deuteranopia (green-blind)

#3C5483

Tritanopia (blue-blind)

#00676B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5d84;
/* rgb */ color: rgb(27, 93, 132);
/* oklch */ color: oklch(45.7% 0.090 239.6);

Tailwind

colors: {
  custom: {
    50: '#688aa8',
    500: '#1b5d84',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d84;
$custom-light: #688aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d84",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 132
  },
  "hsl": {
    "h": 202.286,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.45684,
    "c": 0.09038,
    "h": 239.6
  },
  "luminance": 0.09728
}

Semantic roles & 50–950 ramp

primary

#1B5D84

secondary

#B76E43

accent

#7E3FE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5D84

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

Preview Lab → · Contrast checker → · Palette generator →