#1B68B3#1B68B3

#1B68B3 is a mid, vivid cyan. Relative luminance 0.134; OKLCH L 51.2% C 0.139 H 252.3°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B68B3
RGB	rgb(27, 104, 179)
HSL	hsl(210, 74%, 40%)
HSV	hsv(210, 85%, 70%)
CMYK	cmyk(84.9%, 41.9%, 0%, 29.8%)
CIE-LAB	lab(43.34, 5.33, -46.12)
CIE-LCH	lch(43.34, 46.43, 276.59°)
OKLab	oklab(51.24% -0.0423 -0.1321)
OKLCH	oklch(51.24% 0.139 252.3)
XYZ	xyz(13.5359, 13.3866, 44.5095)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B68B3 #B3661B

analogous

#1BB3B2 #1B68B3 #1B1CB3

triadic

#1B68B3 #B31B68 #68B31B

tetradic

#1B68B3 #B21BB3 #B3661B #1CB31B

square

#1B68B3 #B21BB3 #B3661B #1CB31B

split-complementary

#1B68B3 #B31B1C #B3B21B

monochromatic

#0B2A49 #13497E #1B68B3 #2C87DF #61A5E7

Accessibility & contrast

On white

5.71

#1B68B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#1B68B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B68B3

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B68B3	#FFFFFF	#000000	##FFFFFF
##1B68B3	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426EB6

Deuteranopia (green-blind)

#2760B2

Tritanopia (blue-blind)

#007A85

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #1b68b3;
/* rgb */ color: rgb(27, 104, 179);
/* oklch */ color: oklch(51.2% 0.139 252.3);

Tailwind

colors: {
  custom: {
    50: '#7392ca',
    500: '#1b68b3',
    950: '#000000',
  },
}

SCSS

$custom: #1b68b3;
$custom-light: #7392ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b68b3",
  "rgb": {
    "r": 27,
    "g": 104,
    "b": 179
  },
  "hsl": {
    "h": 209.605,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51242,
    "c": 0.13869,
    "h": 252.3
  },
  "luminance": 0.13388
}

Semantic roles & 50–950 ramp

primary

#1B68B3

secondary

#CC945E

accent

#9337F0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1B68B3

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

Preview Lab → · Contrast checker → · Palette generator →