#1E88A8#1E88A8

#1E88A8 is a mid, moderate cyan. Relative luminance 0.207; OKLCH L 58.4% C 0.102 H 223.8°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#1E88A8
RGB	rgb(30, 136, 168)
HSL	hsl(194, 70%, 39%)
HSV	hsv(194, 82%, 66%)
CMYK	cmyk(82.1%, 19%, 0%, 34.1%)
CIE-LAB	lab(52.63, -17.43, -25.12)
CIE-LCH	lch(52.63, 30.57, 235.23°)
OKLab	oklab(58.44% -0.0734 -0.0705)
OKLCH	oklch(58.44% 0.102 223.8)
XYZ	xyz(16.4045, 20.7094, 40.1709)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E88A8 #A83E1E

analogous

#1EA883 #1E88A8 #1E43A8

triadic

#1E88A8 #A81E88 #88A81E

tetradic

#1E88A8 #831EA8 #A83E1E #43A81E

square

#1E88A8 #831EA8 #A83E1E #43A81E

split-complementary

#1E88A8 #A81E43 #A8831E

monochromatic

#0B3440 #155E74 #1E88A8 #2AB0D9 #5EC4E2

Accessibility & contrast

On white

4.08

#1E88A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#1E88A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1E88A8

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E88A8	#FFFFFF	#000000	##000000
##1E88A8	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7685AA

Deuteranopia (green-blind)

#6478A8

Tritanopia (blue-blind)

#009292

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #1e88a8;
/* rgb */ color: rgb(30, 136, 168);
/* oklch */ color: oklch(58.4% 0.102 223.8);

Tailwind

colors: {
  custom: {
    50: '#73aac2',
    500: '#1e88a8',
    950: '#000000',
  },
}

SCSS

$custom: #1e88a8;
$custom-light: #73aac2;
$custom-dark: #000000;

JSON

{
  "hex": "#1e88a8",
  "rgb": {
    "r": 30,
    "g": 136,
    "b": 168
  },
  "hsl": {
    "h": 193.913,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.58439,
    "c": 0.10177,
    "h": 223.8
  },
  "luminance": 0.20711
}

Semantic roles & 50–950 ramp

primary

#1E88A8

secondary

#C7745B

accent

#643BED

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1E88A8

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

Preview Lab → · Contrast checker → · Palette generator →