#1B5B86#1B5B86

#1B5B86 is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.3% C 0.094 H 242.9°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B86
RGB	rgb(27, 91, 134)
HSL	hsl(204, 66%, 32%)
HSV	hsv(204, 80%, 53%)
CMYK	cmyk(79.9%, 32.1%, 0%, 47.5%)
CIE-LAB	lab(36.81, -4.08, -29.63)
CIE-LCH	lch(36.81, 29.91, 262.16°)
OKLab	oklab(45.29% -0.043 -0.084)
OKLCH	oklch(45.29% 0.094 242.9)
XYZ	xyz(8.4945, 9.4354, 23.9232)
Luminance	0.0944 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B86 #86461B

analogous

#1B867C #1B5B86 #1B2686

triadic

#1B5B86 #861B5B #5B861B

tetradic

#1B5B86 #7C1B86 #86461B #26861B

square

#1B5B86 #7C1B86 #86461B #26861B

split-complementary

#1B5B86 #861B26 #867C1B

monochromatic

#061620 #113853 #1B5B86 #257EB9 #429CD9

Accessibility & contrast

On white

7.27

#1B5B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1B5B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B86

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B86	#FFFFFF	#000000	##FFFFFF
##1B5B86	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475C88

Deuteranopia (green-blind)

#385285

Tritanopia (blue-blind)

#00666A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b5b86;
/* rgb */ color: rgb(27, 91, 134);
/* oklch */ color: oklch(45.3% 0.094 242.9);

Tailwind

colors: {
  custom: {
    50: '#6989a9',
    500: '#1b5b86',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b86;
$custom-light: #6989a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b86",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 134
  },
  "hsl": {
    "h": 204.112,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.45291,
    "c": 0.0944,
    "h": 242.9
  },
  "luminance": 0.09436
}

Semantic roles & 50–950 ramp

primary

#1B5B86

secondary

#B97344

accent

#833EE9

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5B86

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

Preview Lab → · Contrast checker → · Palette generator →