#1E73BB#1E73BB

#1E73BB is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.4% C 0.136 H 249.4°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#1E73BB
RGB	rgb(30, 115, 187)
HSL	hsl(208, 72%, 43%)
HSV	hsv(208, 84%, 73%)
CMYK	cmyk(84%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(47.14, 1.81, -44.71)
CIE-LCH	lch(47.14, 44.75, 272.32°)
OKLab	oklab(54.38% -0.0481 -0.1277)
OKLCH	oklch(54.38% 0.136 249.4)
XYZ	xyz(15.6324, 16.1234, 49.2923)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E73BB #BB661E

analogous

#1EBBB4 #1E73BB #1E25BB

triadic

#1E73BB #BB1E73 #73BB1E

tetradic

#1E73BB #B41EBB #BB661E #25BB1E

square

#1E73BB #B41EBB #BB661E #25BB1E

split-complementary

#1E73BB #BB1E25 #BBB41E

monochromatic

#0D3252 #165386 #1E73BB #3792DF #6CAFE7

Accessibility & contrast

On white

4.97

#1E73BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#1E73BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1E73BB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E73BB	#FFFFFF	#000000	##FFFFFF
##1E73BB	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BE

Deuteranopia (green-blind)

#3869BA

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1e73bb;
/* rgb */ color: rgb(30, 115, 187);
/* oklch */ color: oklch(54.4% 0.136 249.4);

Tailwind

colors: {
  custom: {
    50: '#759ad0',
    500: '#1e73bb',
    950: '#000000',
  },
}

SCSS

$custom: #1e73bb;
$custom-light: #759ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#1e73bb",
  "rgb": {
    "r": 30,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 207.516,
    "s": 72.35,
    "l": 42.549
  },
  "oklch": {
    "l": 0.54378,
    "c": 0.13648,
    "h": 249.4
  },
  "luminance": 0.16125
}

Semantic roles & 50–950 ramp

primary

#1E73BB

secondary

#CD9667

accent

#8C39EF

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #1E73BB

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

Preview Lab → · Contrast checker → · Palette generator →