#1B5C8F#1B5C8F

#1B5C8F is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 46.1% C 0.105 H 246.8°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B5C8F
RGB	rgb(27, 92, 143)
HSL	hsl(206, 68%, 33%)
HSV	hsv(206, 81%, 56%)
CMYK	cmyk(81.1%, 35.7%, 0%, 43.9%)
CIE-LAB	lab(37.61, -1.20, -33.84)
CIE-LCH	lch(37.61, 33.86, 267.97°)
OKLab	oklab(46.08% -0.0412 -0.0963)
OKLCH	oklch(46.08% 0.105 246.8)
XYZ	xyz(9.2352, 9.8694, 27.3995)
Luminance	0.0987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5C8F #8F4E1B

analogous

#1B8F88 #1B5C8F #1B228F

triadic

#1B5C8F #8F1B5C #5C8F1B

tetradic

#1B5C8F #881B8F #8F4E1B #228F1B

square

#1B5C8F #881B8F #8F4E1B #228F1B

split-complementary

#1B5C8F #8F1B22 #8F881B

monochromatic

#081A28 #113B5C #1B5C8F #257DC2 #489BDC

Accessibility & contrast

On white

7.06

#1B5C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#1B5C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5C8F

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5C8F	#FFFFFF	#000000	##FFFFFF
##1B5C8F	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445E91

Deuteranopia (green-blind)

#33548E

Tritanopia (blue-blind)

#00686F

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5c8f;
/* rgb */ color: rgb(27, 92, 143);
/* oklch */ color: oklch(46.1% 0.105 246.8);

Tailwind

colors: {
  custom: {
    50: '#6b89b0',
    500: '#1b5c8f',
    950: '#000000',
  },
}

SCSS

$custom: #1b5c8f;
$custom-light: #6b89b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5c8f",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 143
  },
  "hsl": {
    "h": 206.379,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.46078,
    "c": 0.10473,
    "h": 246.8
  },
  "luminance": 0.0987
}

Semantic roles & 50–950 ramp

primary

#1B5C8F

secondary

#BE7C48

accent

#893DEB

background

#F6F8FA

surface

#ECF0F5

border

#C7CBCF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5C8F

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

Preview Lab → · Contrast checker → · Palette generator →