#1E91B0#1E91B0

#1E91B0 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.0% C 0.105 H 221.5°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#1E91B0
RGB	rgb(30, 145, 176)
HSL	hsl(193, 71%, 40%)
HSV	hsv(193, 83%, 69%)
CMYK	cmyk(83%, 17.6%, 0%, 31%)
CIE-LAB	lab(55.74, -19.51, -24.90)
CIE-LCH	lch(55.74, 31.63, 231.92°)
OKLab	oklab(61.05% -0.0789 -0.0698)
OKLCH	oklch(61.05% 0.105 221.5)
XYZ	xyz(18.4940, 23.6591, 44.6578)
Luminance	0.2366 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E91B0 #B03D1E

analogous

#1EB086 #1E91B0 #1E48B0

triadic

#1E91B0 #B01E91 #91B01E

tetradic

#1E91B0 #861EB0 #B03D1E #48B01E

square

#1E91B0 #861EB0 #B03D1E #48B01E

split-complementary

#1E91B0 #B01E48 #B0861E

monochromatic

#0C3B47 #15667C #1E91B0 #30B7DC #64C9E5

Accessibility & contrast

On white

3.66

#1E91B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#1E91B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1E91B0

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E91B0	#FFFFFF	#000000	##000000
##1E91B0	1.00	3.66	5.73	5.73
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8DB2

Deuteranopia (green-blind)

#6C80B0

Tritanopia (blue-blind)

#009B9B

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #1e91b0;
/* rgb */ color: rgb(30, 145, 176);
/* oklch */ color: oklch(61.0% 0.105 221.5);

Tailwind

colors: {
  custom: {
    50: '#75b1c7',
    500: '#1e91b0',
    950: '#000000',
  },
}

SCSS

$custom: #1e91b0;
$custom-light: #75b1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1e91b0",
  "rgb": {
    "r": 30,
    "g": 145,
    "b": 176
  },
  "hsl": {
    "h": 192.74,
    "s": 70.874,
    "l": 40.392
  },
  "oklch": {
    "l": 0.61048,
    "c": 0.10534,
    "h": 221.5
  },
  "luminance": 0.23661
}

Semantic roles & 50–950 ramp

primary

#1E91B0

secondary

#CA7760

accent

#603AEE

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1E91B0

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

Preview Lab → · Contrast checker → · Palette generator →