#1B5980#1B5980

#1B5980 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.4% C 0.089 H 241.0°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B5980
RGB	rgb(27, 89, 128)
HSL	hsl(203, 65%, 30%)
HSV	hsv(203, 79%, 50%)
CMYK	cmyk(78.9%, 30.5%, 0%, 49.8%)
CIE-LAB	lab(35.86, -5.15, -27.46)
CIE-LCH	lch(35.86, 27.93, 259.38°)
OKLab	oklab(44.44% -0.043 -0.0777)
OKLCH	oklch(44.44% 0.089 241)
XYZ	xyz(7.9191, 8.9353, 21.7252)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5980 #80421B

analogous

#1B8074 #1B5980 #1B2780

triadic

#1B5980 #801B59 #59801B

tetradic

#1B5980 #741B80 #80421B #27801B

square

#1B5980 #741B80 #80421B #27801B

split-complementary

#1B5980 #801B27 #80741B

monochromatic

#06131B #10364D #1B5980 #267CB3 #3F9CD6

Accessibility & contrast

On white

7.53

#1B5980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#1B5980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5980

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5980	#FFFFFF	#000000	##FFFFFF
##1B5980	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475A82

Deuteranopia (green-blind)

#39507F

Tritanopia (blue-blind)

#006367

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5980;
/* rgb */ color: rgb(27, 89, 128);
/* oklch */ color: oklch(44.4% 0.089 241.0);

Tailwind

colors: {
  custom: {
    50: '#6887a5',
    500: '#1b5980',
    950: '#000000',
  },
}

SCSS

$custom: #1b5980;
$custom-light: #6887a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5980",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 128
  },
  "hsl": {
    "h": 203.168,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.44438,
    "c": 0.08883,
    "h": 241
  },
  "luminance": 0.08936
}

Semantic roles & 50–950 ramp

primary

#1B5980

secondary

#B46F43

accent

#8140E8

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5980

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

Preview Lab → · Contrast checker → · Palette generator →