#1B5BA8#1B5BA8

#1B5BA8 is a mid, vivid cyan. Relative luminance 0.105; OKLCH L 47.5% C 0.139 H 255.7°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B5BA8
RGB	rgb(27, 91, 168)
HSL	hsl(213, 72%, 38%)
HSV	hsv(213, 84%, 66%)
CMYK	cmyk(83.9%, 45.8%, 0%, 34.1%)
CIE-LAB	lab(38.80, 9.36, -46.92)
CIE-LCH	lch(38.80, 47.85, 281.29°)
OKLab	oklab(47.49% -0.0342 -0.1347)
OKLCH	oklch(47.49% 0.139 255.7)
XYZ	xyz(11.2583, 10.5409, 38.4794)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5BA8 #A8681B

analogous

#1BA1A8 #1B5BA8 #211BA8

triadic

#1B5BA8 #A81B5B #5BA81B

tetradic

#1B5BA8 #A81BA1 #A8681B #1BA821

square

#1B5BA8 #A81BA1 #A8681B #1BA821

split-complementary

#1B5BA8 #A8211B #A1A81B

monochromatic

#0A223F #133E73 #1B5BA8 #2478DC #5998E4

Accessibility & contrast

On white

6.76

#1B5BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#1B5BA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5BA8

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5BA8	#FFFFFF	#000000	##FFFFFF
##1B5BA8	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)

#3262AB

Deuteranopia (green-blind)

#0F56A6

Tritanopia (blue-blind)

#006D79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1b5ba8;
/* rgb */ color: rgb(27, 91, 168);
/* oklch */ color: oklch(47.5% 0.139 255.7);

Tailwind

colors: {
  custom: {
    50: '#7088c2',
    500: '#1b5ba8',
    950: '#000000',
  },
}

SCSS

$custom: #1b5ba8;
$custom-light: #7088c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5ba8",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 168
  },
  "hsl": {
    "h": 212.766,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47491,
    "c": 0.139,
    "h": 255.7
  },
  "luminance": 0.10542
}

Semantic roles & 50–950 ramp

primary

#1B5BA8

secondary

#C89557

accent

#9C39EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5BA8

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

Preview Lab → · Contrast checker → · Palette generator →