#1991B3#1991B3

#1991B3 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.1% C 0.109 H 223.3°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#1991B3
RGB	rgb(25, 145, 179)
HSL	hsl(193, 75%, 40%)
HSV	hsv(193, 86%, 70%)
CMYK	cmyk(86%, 19%, 0%, 29.8%)
CIE-LAB	lab(55.80, -18.87, -26.54)
CIE-LCH	lch(55.80, 32.56, 234.59°)
OKLab	oklab(61.11% -0.0792 -0.0745)
OKLCH	oklch(61.11% 0.109 223.3)
XYZ	xyz(18.6595, 23.7097, 46.2321)
Luminance	0.2371 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1991B3 #B33B19

analogous

#19B388 #1991B3 #1944B3

triadic

#1991B3 #B31991 #91B319

tetradic

#1991B3 #8819B3 #B33B19 #44B319

square

#1991B3 #8819B3 #B33B19 #44B319

split-complementary

#1991B3 #B31944 #B38819

monochromatic

#0A3A48 #12657D #1991B3 #28B8E1 #5ECAE8

Accessibility & contrast

On white

3.66

#1991B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#1991B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1991B3

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1991B3	#FFFFFF	#000000	##000000
##1991B3	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8EB5

Deuteranopia (green-blind)

#6A80B3

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #1991b3;
/* rgb */ color: rgb(25, 145, 179);
/* oklch */ color: oklch(61.1% 0.109 223.3);

Tailwind

colors: {
  custom: {
    50: '#74b1c9',
    500: '#1991b3',
    950: '#000000',
  },
}

SCSS

$custom: #1991b3;
$custom-light: #74b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1991b3",
  "rgb": {
    "r": 25,
    "g": 145,
    "b": 179
  },
  "hsl": {
    "h": 193.247,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.61109,
    "c": 0.10871,
    "h": 223.3
  },
  "luminance": 0.23712
}

Semantic roles & 50–950 ramp

primary

#1991B3

secondary

#CC745B

accent

#5F36F2

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1991B3

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

Preview Lab → · Contrast checker → · Palette generator →