#1E88A0#1E88A0

#1E88A0 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.1% C 0.097 H 217.5°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#1E88A0
RGB	rgb(30, 136, 160)
HSL	hsl(191, 68%, 37%)
HSV	hsv(191, 81%, 63%)
CMYK	cmyk(81.3%, 15%, 0%, 37.3%)
CIE-LAB	lab(52.31, -20.20, -20.99)
CIE-LCH	lch(52.31, 29.13, 226.10°)
OKLab	oklab(58.08% -0.0766 -0.0587)
OKLCH	oklch(58.08% 0.097 217.5)
XYZ	xyz(15.6820, 20.4204, 36.3659)
Luminance	0.2042 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E88A0 #A0361E

analogous

#1EA077 #1E88A0 #1E47A0

triadic

#1E88A0 #A01E88 #88A01E

tetradic

#1E88A0 #771EA0 #A0361E #47A01E

square

#1E88A0 #771EA0 #A0361E #47A01E

split-complementary

#1E88A0 #A01E47 #A0771E

monochromatic

#0B3039 #145C6C #1E88A0 #28B4D4 #59C7E0

Accessibility & contrast

On white

4.13

#1E88A0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#1E88A0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1E88A0

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E88A0	#FFFFFF	#000000	##000000
##1E88A0	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7884A1

Deuteranopia (green-blind)

#6777A0

Tritanopia (blue-blind)

#009090

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #1e88a0;
/* rgb */ color: rgb(30, 136, 160);
/* oklch */ color: oklch(58.1% 0.097 217.5);

Tailwind

colors: {
  custom: {
    50: '#72abbc',
    500: '#1e88a0',
    950: '#000000',
  },
}

SCSS

$custom: #1e88a0;
$custom-light: #72abbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1e88a0",
  "rgb": {
    "r": 30,
    "g": 136,
    "b": 160
  },
  "hsl": {
    "h": 191.077,
    "s": 68.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.58075,
    "c": 0.09651,
    "h": 217.5
  },
  "luminance": 0.20422
}

Semantic roles & 50–950 ramp

primary

#1E88A0

secondary

#C46A56

accent

#5D3DEB

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1E88A0

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

Preview Lab → · Contrast checker → · Palette generator →