#1B5E99#1B5E99

#1B5E99 is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 47.2% C 0.116 H 249.6°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E99
RGB	rgb(27, 94, 153)
HSL	hsl(208, 70%, 35%)
HSV	hsv(208, 82%, 60%)
CMYK	cmyk(82.4%, 38.6%, 0%, 40%)
CIE-LAB	lab(38.79, 1.46, -37.99)
CIE-LCH	lch(38.79, 38.02, 272.20°)
OKLab	oklab(47.19% -0.0402 -0.1084)
OKLCH	oklch(47.19% 0.116 249.6)
XYZ	xyz(10.2023, 10.5371, 31.6270)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E99 #99561B

analogous

#1B9995 #1B5E99 #1B1F99

triadic

#1B5E99 #991B5E #5E991B

tetradic

#1B5E99 #951B99 #99561B #1F991B

square

#1B5E99 #951B99 #99561B #1F991B

split-complementary

#1B5E99 #991B1F #99951B

monochromatic

#091E31 #123E65 #1B5E99 #247ECD #4F9CE0

Accessibility & contrast

On white

6.76

#1B5E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#1B5E99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E99

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E99	#FFFFFF	#000000	##FFFFFF
##1B5E99	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42629B

Deuteranopia (green-blind)

#2E5698

Tritanopia (blue-blind)

#006C74

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1b5e99;
/* rgb */ color: rgb(27, 94, 153);
/* oklch */ color: oklch(47.2% 0.116 249.6);

Tailwind

colors: {
  custom: {
    50: '#6d8bb7',
    500: '#1b5e99',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e99;
$custom-light: #6d8bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e99",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 153
  },
  "hsl": {
    "h": 208.095,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.4719,
    "c": 0.11563,
    "h": 249.6
  },
  "luminance": 0.10538
}

Semantic roles & 50–950 ramp

primary

#1B5E99

secondary

#C2844E

accent

#8E3BED

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1B5E99

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

Preview Lab → · Contrast checker → · Palette generator →