#1B5E90#1B5E90

#1B5E90 is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.6% C 0.104 H 245.7°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E90
RGB	rgb(27, 94, 144)
HSL	hsl(206, 68%, 34%)
HSV	hsv(206, 81%, 56%)
CMYK	cmyk(81.3%, 34.7%, 0%, 43.5%)
CIE-LAB	lab(38.29, -2.07, -33.37)
CIE-LCH	lch(38.29, 33.43, 266.45°)
OKLab	oklab(46.63% -0.0428 -0.0949)
OKLCH	oklch(46.63% 0.104 245.7)
XYZ	xyz(9.4868, 10.2509, 27.8588)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E90 #904D1B

analogous

#1B9087 #1B5E90 #1B2390

triadic

#1B5E90 #901B5E #5E901B

tetradic

#1B5E90 #871B90 #904D1B #23901B

square

#1B5E90 #871B90 #904D1B #23901B

split-complementary

#1B5E90 #901B23 #90871B

monochromatic

#081B29 #113C5C #1B5E90 #2580C4 #499DDD

Accessibility & contrast

On white

6.88

#1B5E90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1B5E90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E90

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E90	#FFFFFF	#000000	##FFFFFF
##1B5E90	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476092

Deuteranopia (green-blind)

#36558F

Tritanopia (blue-blind)

#006A70

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b5e90;
/* rgb */ color: rgb(27, 94, 144);
/* oklch */ color: oklch(46.6% 0.104 245.7);

Tailwind

colors: {
  custom: {
    50: '#6b8bb1',
    500: '#1b5e90',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e90;
$custom-light: #6b8bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e90",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 144
  },
  "hsl": {
    "h": 205.641,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.46633,
    "c": 0.10407,
    "h": 245.7
  },
  "luminance": 0.10252
}

Semantic roles & 50–950 ramp

primary

#1B5E90

secondary

#BF7B48

accent

#873DEB

background

#F6F8FA

surface

#ECF0F5

border

#C7CBCF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5E90

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

Preview Lab → · Contrast checker → · Palette generator →