#1B5688#1B5688

#1B5688 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.102 H 248.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B5688
RGB	rgb(27, 86, 136)
HSL	hsl(208, 67%, 32%)
HSV	hsv(208, 80%, 53%)
CMYK	cmyk(80.1%, 36.8%, 0%, 46.7%)
CIE-LAB	lab(35.33, -0.13, -33.19)
CIE-LCH	lch(35.33, 33.19, 269.78°)
OKLab	oklab(44.16% -0.0375 -0.0945)
OKLCH	oklch(44.16% 0.102 248.3)
XYZ	xyz(8.2220, 8.6652, 24.5270)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5688 #884D1B

analogous

#1B8884 #1B5688 #1B2088

triadic

#1B5688 #881B56 #56881B

tetradic

#1B5688 #841B88 #884D1B #20881B

square

#1B5688 #841B88 #884D1B #20881B

split-complementary

#1B5688 #881B20 #88841B

monochromatic

#071522 #113655 #1B5688 #2576BB #4495DA

Accessibility & contrast

On white

7.68

#1B5688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1B5688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5688

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5688	#FFFFFF	#000000	##FFFFFF
##1B5688	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F598A

Deuteranopia (green-blind)

#2F4F87

Tritanopia (blue-blind)

#006268

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5688;
/* rgb */ color: rgb(27, 86, 136);
/* oklch */ color: oklch(44.2% 0.102 248.3);

Tailwind

colors: {
  custom: {
    50: '#6985ab',
    500: '#1b5688',
    950: '#000000',
  },
}

SCSS

$custom: #1b5688;
$custom-light: #6985ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5688",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 136
  },
  "hsl": {
    "h": 207.523,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.44162,
    "c": 0.10167,
    "h": 248.3
  },
  "luminance": 0.08666
}

Semantic roles & 50–950 ramp

primary

#1B5688

secondary

#BB7A44

accent

#8D3EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5688

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

Preview Lab → · Contrast checker → · Palette generator →