#1B5B87#1B5B87

#1B5B87 is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.4% C 0.096 H 243.5°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B87
RGB	rgb(27, 91, 135)
HSL	hsl(204, 67%, 32%)
HSV	hsv(204, 80%, 53%)
CMYK	cmyk(80%, 32.6%, 0%, 47.1%)
CIE-LAB	lab(36.86, -3.69, -30.16)
CIE-LCH	lch(36.86, 30.39, 263.02°)
OKLab	oklab(45.35% -0.0427 -0.0856)
OKLCH	oklch(45.35% 0.096 243.5)
XYZ	xyz(8.5646, 9.4634, 24.2922)
Luminance	0.0946 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B87 #87471B

analogous

#1B877D #1B5B87 #1B2587

triadic

#1B5B87 #871B5B #5B871B

tetradic

#1B5B87 #7D1B87 #87471B #25871B

square

#1B5B87 #7D1B87 #87471B #25871B

split-complementary

#1B5B87 #871B25 #877D1B

monochromatic

#071621 #113954 #1B5B87 #257DBA #439CD9

Accessibility & contrast

On white

7.26

#1B5B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1B5B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B87

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B87	#FFFFFF	#000000	##FFFFFF
##1B5B87	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475C89

Deuteranopia (green-blind)

#375286

Tritanopia (blue-blind)

#00666B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b5b87;
/* rgb */ color: rgb(27, 91, 135);
/* oklch */ color: oklch(45.4% 0.096 243.5);

Tailwind

colors: {
  custom: {
    50: '#6989aa',
    500: '#1b5b87',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b87;
$custom-light: #6989aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b87",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 135
  },
  "hsl": {
    "h": 204.444,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.4535,
    "c": 0.09563,
    "h": 243.5
  },
  "luminance": 0.09464
}

Semantic roles & 50–950 ramp

primary

#1B5B87

secondary

#BA7444

accent

#843EEA

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5B87

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

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