#1991B4#1991B4

#1991B4 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.2% C 0.109 H 224.0°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#1991B4
RGB	rgb(25, 145, 180)
HSL	hsl(194, 76%, 40%)
HSV	hsv(194, 86%, 71%)
CMYK	cmyk(86.1%, 19.4%, 0%, 29.4%)
CIE-LAB	lab(55.84, -18.52, -27.04)
CIE-LCH	lch(55.84, 32.78, 235.60°)
OKLab	oklab(61.16% -0.0788 -0.076)
OKLCH	oklch(61.16% 0.109 224)
XYZ	xyz(18.7610, 23.7503, 46.7666)
Luminance	0.2375 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1991B4 #B43C19

analogous

#19B489 #1991B4 #1944B4

triadic

#1991B4 #B41991 #91B419

tetradic

#1991B4 #8919B4 #B43C19 #44B419

square

#1991B4 #8919B4 #B43C19 #44B419

split-complementary

#1991B4 #B41944 #B48919

monochromatic

#0A3A49 #12667E #1991B4 #29B8E1 #5FCAE9

Accessibility & contrast

On white

3.65

#1991B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#1991B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1991B4

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1991B4	#FFFFFF	#000000	##000000
##1991B4	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8EB6

Deuteranopia (green-blind)

#6A80B4

Tritanopia (blue-blind)

#009C9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #1991b4;
/* rgb */ color: rgb(25, 145, 180);
/* oklch */ color: oklch(61.2% 0.109 224.0);

Tailwind

colors: {
  custom: {
    50: '#74b1ca',
    500: '#1991b4',
    950: '#000000',
  },
}

SCSS

$custom: #1991b4;
$custom-light: #74b1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1991b4",
  "rgb": {
    "r": 25,
    "g": 145,
    "b": 180
  },
  "hsl": {
    "h": 193.548,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.61156,
    "c": 0.10944,
    "h": 224
  },
  "luminance": 0.23753
}

Semantic roles & 50–950 ramp

primary

#1991B4

secondary

#CD755C

accent

#6036F2

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1991B4

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

Preview Lab → · Contrast checker → · Palette generator →