#1B5AA0#1B5AA0

#1B5AA0 is a mid, vivid cyan. Relative luminance 0.101; OKLCH L 46.7% C 0.129 H 254.3°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B5AA0
RGB	rgb(27, 90, 160)
HSL	hsl(212, 71%, 37%)
HSV	hsv(212, 83%, 63%)
CMYK	cmyk(83.1%, 43.7%, 0%, 37.3%)
CIE-LAB	lab(37.99, 6.83, -43.46)
CIE-LCH	lch(37.99, 43.99, 278.93°)
OKLab	oklab(46.7% -0.0351 -0.1245)
OKLCH	oklch(46.7% 0.129 254.3)
XYZ	xyz(10.4509, 10.0821, 34.6461)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5AA0 #A0611B

analogous

#1B9DA0 #1B5AA0 #1F1BA0

triadic

#1B5AA0 #A01B5A #5AA01B

tetradic

#1B5AA0 #A01B9D #A0611B #1BA01F

square

#1B5AA0 #A01B9D #A0611B #1BA01F

split-complementary

#1B5AA0 #A01F1B #9DA01B

monochromatic

#091F37 #123D6C #1B5AA0 #2477D4 #5397E2

Accessibility & contrast

On white

6.96

#1B5AA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1B5AA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5AA0

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5AA0	#FFFFFF	#000000	##FFFFFF
##1B5AA0	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3660A3

Deuteranopia (green-blind)

#1C549F

Tritanopia (blue-blind)

#006B75

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5aa0;
/* rgb */ color: rgb(27, 90, 160);
/* oklch */ color: oklch(46.7% 0.129 254.3);

Tailwind

colors: {
  custom: {
    50: '#6f88bc',
    500: '#1b5aa0',
    950: '#000000',
  },
}

SCSS

$custom: #1b5aa0;
$custom-light: #6f88bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5aa0",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 160
  },
  "hsl": {
    "h": 211.579,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46701,
    "c": 0.12938,
    "h": 254.3
  },
  "luminance": 0.10083
}

Semantic roles & 50–950 ramp

primary

#1B5AA0

secondary

#C58E52

accent

#993AEE

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1B5AA0

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

Preview Lab → · Contrast checker → · Palette generator →