#1B739E#1B739E

#1B739E is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.6% C 0.103 H 235.8°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B739E
RGB	rgb(27, 115, 158)
HSL	hsl(200, 71%, 36%)
HSV	hsv(200, 83%, 62%)
CMYK	cmyk(82.9%, 27.2%, 0%, 38%)
CIE-LAB	lab(45.58, -9.47, -30.25)
CIE-LCH	lch(45.58, 31.70, 252.61°)
OKLab	oklab(52.64% -0.0581 -0.0855)
OKLCH	oklch(52.64% 0.103 235.8)
XYZ	xyz(12.7518, 14.9615, 34.5569)
Luminance	0.1496 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B739E #9E461B

analogous

#1B9E88 #1B739E #1B319E

triadic

#1B739E #9E1B73 #739E1B

tetradic

#1B739E #881B9E #9E461B #319E1B

square

#1B739E #881B9E #9E461B #319E1B

split-complementary

#1B739E #9E1B31 #9E881B

monochromatic

#092735 #124D6A #1B739E #2499D2 #52B2E1

Accessibility & contrast

On white

5.26

#1B739E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#1B739E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B739E

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B739E	#FFFFFF	#000000	##FFFFFF
##1B739E	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E73A0

Deuteranopia (green-blind)

#4D679D

Tritanopia (blue-blind)

#007E82

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1b739e;
/* rgb */ color: rgb(27, 115, 158);
/* oklch */ color: oklch(52.6% 0.103 235.8);

Tailwind

colors: {
  custom: {
    50: '#6f9bbb',
    500: '#1b739e',
    950: '#000000',
  },
}

SCSS

$custom: #1b739e;
$custom-light: #6f9bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b739e",
  "rgb": {
    "r": 27,
    "g": 115,
    "b": 158
  },
  "hsl": {
    "h": 199.695,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.52643,
    "c": 0.10336,
    "h": 235.8
  },
  "luminance": 0.14963
}

Semantic roles & 50–950 ramp

primary

#1B739E

secondary

#C47751

accent

#753AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #1B739E

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

Preview Lab → · Contrast checker → · Palette generator →