#1B5E8A#1B5E8A

#1B5E8A is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.3% C 0.097 H 242.5°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E8A
RGB	rgb(27, 94, 138)
HSL	hsl(204, 67%, 32%)
HSV	hsv(204, 80%, 54%)
CMYK	cmyk(80.4%, 31.9%, 0%, 45.9%)
CIE-LAB	lab(37.97, -4.40, -30.24)
CIE-LCH	lch(37.97, 30.55, 261.72°)
OKLab	oklab(46.28% -0.0447 -0.0857)
OKLCH	oklch(46.28% 0.097 242.5)
XYZ	xyz(9.0403, 10.0723, 25.5075)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E8A #8A471B

analogous

#1B8A7F #1B5E8A #1B268A

triadic

#1B5E8A #8A1B5E #5E8A1B

tetradic

#1B5E8A #7F1B8A #8A471B #268A1B

square

#1B5E8A #7F1B8A #8A471B #268A1B

split-complementary

#1B5E8A #8A1B26 #8A7F1B

monochromatic

#071824 #113B57 #1B5E8A #2581BD #459FDB

Accessibility & contrast

On white

6.97

#1B5E8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#1B5E8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E8A

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E8A	#FFFFFF	#000000	##FFFFFF
##1B5E8A	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495F8C

Deuteranopia (green-blind)

#3A5589

Tritanopia (blue-blind)

#00696E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5e8a;
/* rgb */ color: rgb(27, 94, 138);
/* oklch */ color: oklch(46.3% 0.097 242.5);

Tailwind

colors: {
  custom: {
    50: '#6a8bac',
    500: '#1b5e8a',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e8a;
$custom-light: #6a8bac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e8a",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 138
  },
  "hsl": {
    "h": 203.784,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.46279,
    "c": 0.09667,
    "h": 242.5
  },
  "luminance": 0.10073
}

Semantic roles & 50–950 ramp

primary

#1B5E8A

secondary

#BC7445

accent

#823EEA

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #1B5E8A

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

Preview Lab → · Contrast checker → · Palette generator →