#1B5189#1B5189

#1B5189 is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 43.0% C 0.108 H 252.5°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B5189
RGB	rgb(27, 81, 137)
HSL	hsl(211, 67%, 32%)
HSV	hsv(211, 80%, 54%)
CMYK	cmyk(80.3%, 40.9%, 0%, 46.3%)
CIE-LAB	lab(33.82, 3.53, -36.20)
CIE-LCH	lch(33.82, 36.37, 275.57°)
OKLab	oklab(43% -0.0326 -0.1034)
OKLCH	oklch(43% 0.108 252.5)
XYZ	xyz(7.9081, 7.9231, 24.7746)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5189 #89531B

analogous

#1B8889 #1B5189 #1C1B89

triadic

#1B5189 #891B51 #51891B

tetradic

#1B5189 #891B88 #89531B #1B891C

square

#1B5189 #891B88 #89531B #1B891C

split-complementary

#1B5189 #891C1B #88891B

monochromatic

#071523 #113356 #1B5189 #256FBC #448EDA

Accessibility & contrast

On white

8.12

#1B5189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B5189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5189

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5189	#FFFFFF	#000000	##FFFFFF
##1B5189	1.00	8.12	2.58	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36558B

Deuteranopia (green-blind)

#244B88

Tritanopia (blue-blind)

#005E66

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b5189;
/* rgb */ color: rgb(27, 81, 137);
/* oklch */ color: oklch(43.0% 0.108 252.5);

Tailwind

colors: {
  custom: {
    50: '#6981ac',
    500: '#1b5189',
    950: '#000000',
  },
}

SCSS

$custom: #1b5189;
$custom-light: #6981ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5189",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 137
  },
  "hsl": {
    "h": 210.545,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42998,
    "c": 0.10841,
    "h": 252.5
  },
  "luminance": 0.07924
}

Semantic roles & 50–950 ramp

primary

#1B5189

secondary

#BC8144

accent

#953EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B5189

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

Preview Lab → · Contrast checker → · Palette generator →