#1789B4#1789B4

#1789B4 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.2% C 0.113 H 230.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#1789B4
RGB	rgb(23, 137, 180)
HSL	hsl(196, 77%, 40%)
HSV	hsv(196, 87%, 71%)
CMYK	cmyk(87.2%, 23.9%, 0%, 29.4%)
CIE-LAB	lab(53.35, -14.28, -30.91)
CIE-LCH	lch(53.35, 34.05, 245.20°)
OKLab	oklab(59.15% -0.0719 -0.0872)
OKLCH	oklch(59.15% 0.113 230.5)
XYZ	xyz(17.5338, 21.3665, 46.3712)
Luminance	0.2137 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1789B4 #B44217

analogous

#17B491 #1789B4 #173BB4

triadic

#1789B4 #B41789 #89B417

tetradic

#1789B4 #9117B4 #B44217 #3BB417

square

#1789B4 #9117B4 #B44217 #3BB417

split-complementary

#1789B4 #B4173B #B49117

monochromatic

#093647 #10607E #1789B4 #25AFE3 #5BC3EA

Accessibility & contrast

On white

3.98

#1789B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#1789B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1789B4

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1789B4	#FFFFFF	#000000	##000000
##1789B4	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B6

Deuteranopia (green-blind)

#5F79B3

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #1789b4;
/* rgb */ color: rgb(23, 137, 180);
/* oklch */ color: oklch(59.2% 0.113 230.5);

Tailwind

colors: {
  custom: {
    50: '#73abca',
    500: '#1789b4',
    950: '#000000',
  },
}

SCSS

$custom: #1789b4;
$custom-light: #73abca;
$custom-dark: #000000;

JSON

{
  "hex": "#1789b4",
  "rgb": {
    "r": 23,
    "g": 137,
    "b": 180
  },
  "hsl": {
    "h": 196.433,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.59154,
    "c": 0.11302,
    "h": 230.5
  },
  "luminance": 0.21369
}

Semantic roles & 50–950 ramp

primary

#1789B4

secondary

#CE7959

accent

#6934F4

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1789B4

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

Preview Lab → · Contrast checker → · Palette generator →