#1B5890#1B5890

#1B5890 is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.2% C 0.110 H 250.3°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#1B5890
RGB	rgb(27, 88, 144)
HSL	hsl(209, 68%, 34%)
HSV	hsv(209, 81%, 56%)
CMYK	cmyk(81.3%, 38.9%, 0%, 43.5%)
CIE-LAB	lab(36.41, 1.75, -36.34)
CIE-LCH	lch(36.41, 36.38, 272.76°)
OKLab	oklab(45.16% -0.0372 -0.1037)
OKLCH	oklch(45.16% 0.11 250.3)
XYZ	xyz(8.9738, 9.2250, 27.6878)
Luminance	0.0923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5890 #90531B

analogous

#1B908D #1B5890 #1B1D90

triadic

#1B5890 #901B58 #58901B

tetradic

#1B5890 #8D1B90 #90531B #1D901B

square

#1B5890 #8D1B90 #90531B #1D901B

split-complementary

#1B5890 #901B1D #908D1B

monochromatic

#081929 #11395C #1B5890 #2577C4 #4996DD

Accessibility & contrast

On white

7.38

#1B5890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1B5890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5890

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5890	#FFFFFF	#000000	##FFFFFF
##1B5890	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5B92

Deuteranopia (green-blind)

#2B518F

Tritanopia (blue-blind)

#00656D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b5890;
/* rgb */ color: rgb(27, 88, 144);
/* oklch */ color: oklch(45.2% 0.110 250.3);

Tailwind

colors: {
  custom: {
    50: '#6b86b1',
    500: '#1b5890',
    950: '#000000',
  },
}

SCSS

$custom: #1b5890;
$custom-light: #6b86b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5890",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 144
  },
  "hsl": {
    "h": 208.718,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.4516,
    "c": 0.11015,
    "h": 250.3
  },
  "luminance": 0.09226
}

Semantic roles & 50–950 ramp

primary

#1B5890

secondary

#BF8148

accent

#903DEB

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5890

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

Preview Lab → · Contrast checker → · Palette generator →