#1B5E88#1B5E88

#1B5E88 is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 46.2% C 0.094 H 241.3°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E88
RGB	rgb(27, 94, 136)
HSL	hsl(203, 67%, 32%)
HSV	hsv(203, 80%, 53%)
CMYK	cmyk(80.1%, 30.9%, 0%, 46.7%)
CIE-LAB	lab(37.87, -5.17, -29.18)
CIE-LCH	lch(37.87, 29.64, 259.95°)
OKLab	oklab(46.16% -0.0453 -0.0827)
OKLCH	oklch(46.16% 0.094 241.3)
XYZ	xyz(8.8969, 10.0149, 24.7519)
Luminance	0.1002 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E88 #88451B

analogous

#1B887C #1B5E88 #1B2888

triadic

#1B5E88 #881B5E #5E881B

tetradic

#1B5E88 #7C1B88 #88451B #28881B

square

#1B5E88 #7C1B88 #88451B #28881B

split-complementary

#1B5E88 #881B28 #887C1B

monochromatic

#071722 #113B55 #1B5E88 #2581BB #44A0DA

Accessibility & contrast

On white

6.99

#1B5E88 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#1B5E88 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E88

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E88	#FFFFFF	#000000	##FFFFFF
##1B5E88	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5F8A

Deuteranopia (green-blind)

#3B5587

Tritanopia (blue-blind)

#00686D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5e88;
/* rgb */ color: rgb(27, 94, 136);
/* oklch */ color: oklch(46.2% 0.094 241.3);

Tailwind

colors: {
  custom: {
    50: '#698bab',
    500: '#1b5e88',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e88;
$custom-light: #698bab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e88",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 136
  },
  "hsl": {
    "h": 203.119,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.46164,
    "c": 0.09428,
    "h": 241.3
  },
  "luminance": 0.10016
}

Semantic roles & 50–950 ramp

primary

#1B5E88

secondary

#BB7244

accent

#803EEA

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #1B5E88

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

Preview Lab → · Contrast checker → · Palette generator →