#1B738E#1B738E

#1B738E is a mid, moderate cyan. Relative luminance 0.144; OKLCH L 51.8% C 0.089 H 223.8°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B738E
RGB	rgb(27, 115, 142)
HSL	hsl(194, 68%, 33%)
HSV	hsv(194, 81%, 56%)
CMYK	cmyk(81%, 19%, 0%, 44.3%)
CIE-LAB	lab(44.87, -15.32, -21.89)
CIE-LCH	lch(44.87, 26.72, 235.02°)
OKLab	oklab(51.84% -0.0641 -0.0614)
OKLCH	oklch(51.84% 0.089 223.8)
XYZ	xyz(11.4632, 14.4461, 27.7701)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B738E #8E361B

analogous

#1B8E6F #1B738E #1B398E

triadic

#1B738E #8E1B73 #738E1B

tetradic

#1B738E #6F1B8E #8E361B #398E1B

square

#1B738E #6F1B8E #8E361B #398E1B

split-complementary

#1B738E #8E1B39 #8E6F1B

monochromatic

#072027 #11495B #1B738E #259DC1 #47B9DC

Accessibility & contrast

On white

5.40

#1B738E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#1B738E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B738E

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B738E	#FFFFFF	#000000	##FFFFFF
##1B738E	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64708F

Deuteranopia (green-blind)

#55658E

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1b738e;
/* rgb */ color: rgb(27, 115, 142);
/* oklch */ color: oklch(51.8% 0.089 223.8);

Tailwind

colors: {
  custom: {
    50: '#6c9baf',
    500: '#1b738e',
    950: '#000000',
  },
}

SCSS

$custom: #1b738e;
$custom-light: #6c9baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b738e",
  "rgb": {
    "r": 27,
    "g": 115,
    "b": 142
  },
  "hsl": {
    "h": 194.087,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.51836,
    "c": 0.08876,
    "h": 223.8
  },
  "luminance": 0.14447
}

Semantic roles & 50–950 ramp

primary

#1B738E

secondary

#BE6347

accent

#663DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B738E

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

Preview Lab → · Contrast checker → · Palette generator →