#1B5E97#1B5E97

#1B5E97 is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 47.1% C 0.113 H 248.9°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E97
RGB	rgb(27, 94, 151)
HSL	hsl(208, 70%, 35%)
HSV	hsv(208, 82%, 59%)
CMYK	cmyk(82.1%, 37.7%, 0%, 40.8%)
CIE-LAB	lab(38.68, 0.67, -36.97)
CIE-LCH	lch(38.68, 36.98, 271.04°)
OKLab	oklab(47.06% -0.0408 -0.1054)
OKLCH	oklch(47.06% 0.113 248.9)
XYZ	xyz(10.0385, 10.4716, 30.7643)
Luminance	0.1047 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E97 #97541B

analogous

#1B9792 #1B5E97 #1B2097

triadic

#1B5E97 #971B5E #5E971B

tetradic

#1B5E97 #921B97 #97541B #20971B

square

#1B5E97 #921B97 #97541B #20971B

split-complementary

#1B5E97 #971B20 #97921B

monochromatic

#081D2F #123E63 #1B5E97 #247ECB #4D9CDF

Accessibility & contrast

On white

6.79

#1B5E97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#1B5E97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E97

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E97	#FFFFFF	#000000	##FFFFFF
##1B5E97	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436199

Deuteranopia (green-blind)

#305696

Tritanopia (blue-blind)

#006C73

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1b5e97;
/* rgb */ color: rgb(27, 94, 151);
/* oklch */ color: oklch(47.1% 0.113 248.9);

Tailwind

colors: {
  custom: {
    50: '#6d8bb6',
    500: '#1b5e97',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e97;
$custom-light: #6d8bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e97",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 151
  },
  "hsl": {
    "h": 207.581,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.47064,
    "c": 0.11303,
    "h": 248.9
  },
  "luminance": 0.10473
}

Semantic roles & 50–950 ramp

primary

#1B5E97

secondary

#C1824C

accent

#8D3BEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1B5E97

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

Preview Lab → · Contrast checker → · Palette generator →