#1B5AA1#1B5AA1

#1B5AA1 is a mid, vivid cyan. Relative luminance 0.101; OKLCH L 46.8% C 0.131 H 254.5°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#1B5AA1
RGB	rgb(27, 90, 161)
HSL	hsl(212, 71%, 37%)
HSV	hsv(212, 83%, 63%)
CMYK	cmyk(83.2%, 44.1%, 0%, 36.9%)
CIE-LAB	lab(38.05, 7.23, -43.95)
CIE-LCH	lch(38.05, 44.54, 279.34°)
OKLab	oklab(46.77% -0.0348 -0.126)
OKLCH	oklch(46.77% 0.131 254.5)
XYZ	xyz(10.5388, 10.1172, 35.1087)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5AA1 #A1621B

analogous

#1B9DA1 #1B5AA1 #1F1BA1

triadic

#1B5AA1 #A11B5A #5AA11B

tetradic

#1B5AA1 #A11B9D #A1621B #1BA11F

square

#1B5AA1 #A11B9D #A1621B #1BA11F

split-complementary

#1B5AA1 #A11F1B #9DA11B

monochromatic

#091F38 #123D6D #1B5AA1 #2477D5 #5497E2

Accessibility & contrast

On white

6.94

#1B5AA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1B5AA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5AA1

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5AA1	#FFFFFF	#000000	##FFFFFF
##1B5AA1	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3660A4

Deuteranopia (green-blind)

#1B54A0

Tritanopia (blue-blind)

#006B75

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b5aa1;
/* rgb */ color: rgb(27, 90, 161);
/* oklch */ color: oklch(46.8% 0.131 254.5);

Tailwind

colors: {
  custom: {
    50: '#6f88bd',
    500: '#1b5aa1',
    950: '#000000',
  },
}

SCSS

$custom: #1b5aa1;
$custom-light: #6f88bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5aa1",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 161
  },
  "hsl": {
    "h": 211.791,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.4677,
    "c": 0.13073,
    "h": 254.5
  },
  "luminance": 0.10119
}

Semantic roles & 50–950 ramp

primary

#1B5AA1

secondary

#C58F52

accent

#993AEE

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5AA1

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

Preview Lab → · Contrast checker → · Palette generator →