#1B738C#1B738C

#1B738C is a mid, moderate cyan. Relative luminance 0.144; OKLCH L 51.7% C 0.087 H 222.0°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B738C
RGB	rgb(27, 115, 140)
HSL	hsl(193, 68%, 33%)
HSV	hsv(193, 81%, 55%)
CMYK	cmyk(80.7%, 17.9%, 0%, 45.1%)
CIE-LAB	lab(44.78, -16.03, -20.83)
CIE-LCH	lch(44.78, 26.29, 232.42°)
OKLab	oklab(51.74% -0.0649 -0.0584)
OKLCH	oklch(51.74% 0.087 222)
XYZ	xyz(11.3144, 14.3865, 26.9864)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B738C #8C341B

analogous

#1B8C6C #1B738C #1B3B8C

triadic

#1B738C #8C1B73 #738C1B

tetradic

#1B738C #6C1B8C #8C341B #3B8C1B

square

#1B738C #6C1B8C #8C341B #3B8C1B

split-complementary

#1B738C #8C1B3B #8C6C1B

monochromatic

#071F25 #114959 #1B738C #259DBF #46BADB

Accessibility & contrast

On white

5.42

#1B738C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#1B738C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B738C

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B738C	#FFFFFF	#000000	##FFFFFF
##1B738C	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64708D

Deuteranopia (green-blind)

#55658C

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1b738c;
/* rgb */ color: rgb(27, 115, 140);
/* oklch */ color: oklch(51.7% 0.087 222.0);

Tailwind

colors: {
  custom: {
    50: '#6c9bad',
    500: '#1b738c',
    950: '#000000',
  },
}

SCSS

$custom: #1b738c;
$custom-light: #6c9bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b738c",
  "rgb": {
    "r": 27,
    "g": 115,
    "b": 140
  },
  "hsl": {
    "h": 193.274,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.51741,
    "c": 0.0873,
    "h": 222
  },
  "luminance": 0.14388
}

Semantic roles & 50–950 ramp

primary

#1B738C

secondary

#BD6046

accent

#643DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B738C

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

Preview Lab → · Contrast checker → · Palette generator →