#1B5AAD#1B5AAD

#1B5AAD is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.6% C 0.147 H 257.2°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B5AAD
RGB	rgb(27, 90, 173)
HSL	hsl(214, 73%, 39%)
HSV	hsv(214, 84%, 68%)
CMYK	cmyk(84.4%, 48%, 0%, 32.2%)
CIE-LAB	lab(38.83, 12.02, -49.83)
CIE-LCH	lch(38.83, 51.26, 283.56°)
OKLab	oklab(47.62% -0.0325 -0.1433)
OKLCH	oklch(47.62% 0.147 257.2)
XYZ	xyz(11.6482, 10.5610, 40.9516)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5AAD #AD6E1B

analogous

#1BA3AD #1B5AAD #251BAD

triadic

#1B5AAD #AD1B5A #5AAD1B

tetradic

#1B5AAD #AD1BA3 #AD6E1B #1BAD25

square

#1B5AAD #AD1BA3 #AD6E1B #1BAD25

split-complementary

#1B5AAD #AD251B #A3AD1B

monochromatic

#0A2343 #133E78 #1B5AAD #2876DD #5D98E6

Accessibility & contrast

On white

6.75

#1B5AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#1B5AAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5AAD

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5AAD	#FFFFFF	#000000	##FFFFFF
##1B5AAD	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B62B0

Deuteranopia (green-blind)

#0055AB

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1b5aad;
/* rgb */ color: rgb(27, 90, 173);
/* oklch */ color: oklch(47.6% 0.147 257.2);

Tailwind

colors: {
  custom: {
    50: '#7288c6',
    500: '#1b5aad',
    950: '#000000',
  },
}

SCSS

$custom: #1b5aad;
$custom-light: #7288c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5aad",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 173
  },
  "hsl": {
    "h": 214.11,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47623,
    "c": 0.14695,
    "h": 257.2
  },
  "luminance": 0.10562
}

Semantic roles & 50–950 ramp

primary

#1B5AAD

secondary

#CA9A5A

accent

#A038F0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B5AAD

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

Preview Lab → · Contrast checker → · Palette generator →