#1B5AAA#1B5AAA

#1B5AAA is a mid, vivid cyan. Relative luminance 0.104; OKLCH L 47.4% C 0.143 H 256.6°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B5AAA
RGB	rgb(27, 90, 170)
HSL	hsl(214, 73%, 39%)
HSV	hsv(214, 84%, 67%)
CMYK	cmyk(84.1%, 47.1%, 0%, 33.3%)
CIE-LAB	lab(38.63, 10.82, -48.38)
CIE-LCH	lch(38.63, 49.57, 282.61°)
OKLab	oklab(47.41% -0.0331 -0.139)
OKLCH	oklch(47.41% 0.143 256.6)
XYZ	xyz(11.3612, 10.4462, 39.4399)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5AAA #AA6B1B

analogous

#1BA1AA #1B5AAA #231BAA

triadic

#1B5AAA #AA1B5A #5AAA1B

tetradic

#1B5AAA #AA1BA1 #AA6B1B #1BAA23

square

#1B5AAA #AA1BA1 #AA6B1B #1BAA23

split-complementary

#1B5AAA #AA231B #A1AA1B

monochromatic

#0A2240 #133E75 #1B5AAA #2676DC #5B97E5

Accessibility & contrast

On white

6.80

#1B5AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#1B5AAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5AAA

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5AAA	#FFFFFF	#000000	##FFFFFF
##1B5AAA	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E62AD

Deuteranopia (green-blind)

#0155A8

Tritanopia (blue-blind)

#006D79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1b5aaa;
/* rgb */ color: rgb(27, 90, 170);
/* oklch */ color: oklch(47.4% 0.143 256.6);

Tailwind

colors: {
  custom: {
    50: '#7188c4',
    500: '#1b5aaa',
    950: '#000000',
  },
}

SCSS

$custom: #1b5aaa;
$custom-light: #7188c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5aaa",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 170
  },
  "hsl": {
    "h": 213.566,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47405,
    "c": 0.14289,
    "h": 256.6
  },
  "luminance": 0.10448
}

Semantic roles & 50–950 ramp

primary

#1B5AAA

secondary

#C99758

accent

#9F39EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1B5AAA

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

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