#1688B4#1688B4

#1688B4 is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.9% C 0.114 H 231.2°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#1688B4
RGB	rgb(22, 136, 180)
HSL	hsl(197, 78%, 40%)
HSV	hsv(197, 88%, 71%)
CMYK	cmyk(87.8%, 24.4%, 0%, 29.4%)
CIE-LAB	lab(53.03, -13.79, -31.41)
CIE-LCH	lch(53.03, 34.30, 246.29°)
OKLab	oklab(58.89% -0.0713 -0.0886)
OKLCH	oklch(58.89% 0.114 231.2)
XYZ	xyz(17.3699, 21.0719, 46.3230)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1688B4 #B44216

analogous

#16B491 #1688B4 #1639B4

triadic

#1688B4 #B41688 #88B416

tetradic

#1688B4 #9116B4 #B44216 #39B416

square

#1688B4 #9116B4 #B44216 #39B416

split-complementary

#1688B4 #B41639 #B49116

monochromatic

#093647 #0F5F7D #1688B4 #23AEE4 #5AC2EB

Accessibility & contrast

On white

4.03

#1688B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#1688B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1688B4

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1688B4	#FFFFFF	#000000	##000000
##1688B4	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7286B6

Deuteranopia (green-blind)

#5E78B3

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #1688b4;
/* rgb */ color: rgb(22, 136, 180);
/* oklch */ color: oklch(58.9% 0.114 231.2);

Tailwind

colors: {
  custom: {
    50: '#73aaca',
    500: '#1688b4',
    950: '#000000',
  },
}

SCSS

$custom: #1688b4;
$custom-light: #73aaca;
$custom-dark: #000000;

JSON

{
  "hex": "#1688b4",
  "rgb": {
    "r": 22,
    "g": 136,
    "b": 180
  },
  "hsl": {
    "h": 196.709,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.58894,
    "c": 0.11374,
    "h": 231.2
  },
  "luminance": 0.21074
}

Semantic roles & 50–950 ramp

primary

#1688B4

secondary

#CE7958

accent

#6933F5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1688B4

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

Preview Lab → · Contrast checker → · Palette generator →