#1966B4#1966B4

#1966B4 is a mid, vivid cyan. Relative luminance 0.130; OKLCH L 50.8% C 0.143 H 253.2°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#1966B4
RGB	rgb(25, 102, 180)
HSL	hsl(210, 76%, 40%)
HSV	hsv(210, 86%, 71%)
CMYK	cmyk(86.1%, 43.3%, 0%, 29.4%)
CIE-LAB	lab(42.77, 6.84, -47.62)
CIE-LCH	lch(42.77, 48.11, 278.17°)
OKLab	oklab(50.81% -0.0413 -0.1366)
OKLCH	oklch(50.81% 0.143 253.2)
XYZ	xyz(13.3874, 13.0030, 44.9754)
Luminance	0.1300 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1966B4 #B46719

analogous

#19B3B4 #1966B4 #1A19B4

triadic

#1966B4 #B41966 #66B419

tetradic

#1966B4 #B419B3 #B46719 #19B41A

square

#1966B4 #B419B3 #B46719 #19B41A

split-complementary

#1966B4 #B41A19 #B3B419

monochromatic

#0A2949 #12487E #1966B4 #2985E1 #5FA3E9

Accessibility & contrast

On white

5.83

#1966B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#1966B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1966B4

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1966B4	#FFFFFF	#000000	##FFFFFF
##1966B4	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E6CB7

Deuteranopia (green-blind)

#1F5FB2

Tritanopia (blue-blind)

#007984

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #1966b4;
/* rgb */ color: rgb(25, 102, 180);
/* oklch */ color: oklch(50.8% 0.143 253.2);

Tailwind

colors: {
  custom: {
    50: '#7391cb',
    500: '#1966b4',
    950: '#000000',
  },
}

SCSS

$custom: #1966b4;
$custom-light: #7391cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1966b4",
  "rgb": {
    "r": 25,
    "g": 102,
    "b": 180
  },
  "hsl": {
    "h": 210.194,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50805,
    "c": 0.14267,
    "h": 253.2
  },
  "luminance": 0.13005
}

Semantic roles & 50–950 ramp

primary

#1966B4

secondary

#CD955C

accent

#9536F2

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1966B4

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

Preview Lab → · Contrast checker → · Palette generator →