#1B5CA8#1B5CA8

#1B5CA8 is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.7% C 0.138 H 255.3°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B5CA8
RGB	rgb(27, 92, 168)
HSL	hsl(212, 72%, 38%)
HSV	hsv(212, 84%, 66%)
CMYK	cmyk(83.9%, 45.2%, 0%, 34.1%)
CIE-LAB	lab(39.09, 8.71, -46.45)
CIE-LCH	lch(39.09, 47.26, 280.62°)
OKLab	oklab(47.72% -0.035 -0.1333)
OKLCH	oklch(47.72% 0.138 255.3)
XYZ	xyz(11.3444, 10.7130, 38.5081)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5CA8 #A8671B

analogous

#1BA3A8 #1B5CA8 #201BA8

triadic

#1B5CA8 #A81B5C #5CA81B

tetradic

#1B5CA8 #A81BA3 #A8671B #1BA820

square

#1B5CA8 #A81BA3 #A8671B #1BA820

split-complementary

#1B5CA8 #A8201B #A3A81B

monochromatic

#0A223F #133F73 #1B5CA8 #2479DC #5999E4

Accessibility & contrast

On white

6.68

#1B5CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#1B5CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5CA8

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5CA8	#FFFFFF	#000000	##FFFFFF
##1B5CA8	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3463AB

Deuteranopia (green-blind)

#1456A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b5ca8;
/* rgb */ color: rgb(27, 92, 168);
/* oklch */ color: oklch(47.7% 0.138 255.3);

Tailwind

colors: {
  custom: {
    50: '#7089c2',
    500: '#1b5ca8',
    950: '#000000',
  },
}

SCSS

$custom: #1b5ca8;
$custom-light: #7089c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5ca8",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 168
  },
  "hsl": {
    "h": 212.34,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.4772,
    "c": 0.13782,
    "h": 255.3
  },
  "luminance": 0.10714
}

Semantic roles & 50–950 ramp

primary

#1B5CA8

secondary

#C89457

accent

#9B39EF

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5CA8

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

Preview Lab → · Contrast checker → · Palette generator →