#1B749E#1B749E

#1B749E is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 52.9% C 0.103 H 234.9°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#1B749E
RGB	rgb(27, 116, 158)
HSL	hsl(199, 71%, 36%)
HSV	hsv(199, 83%, 62%)
CMYK	cmyk(82.9%, 26.6%, 0%, 38%)
CIE-LAB	lab(45.89, -10.06, -29.76)
CIE-LCH	lch(45.89, 31.41, 251.33°)
OKLab	oklab(52.89% -0.059 -0.0841)
OKLCH	oklch(52.89% 0.103 234.9)
XYZ	xyz(12.8664, 15.1908, 34.5951)
Luminance	0.1519 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B749E #9E451B

analogous

#1B9E87 #1B749E #1B329E

triadic

#1B749E #9E1B74 #749E1B

tetradic

#1B749E #871B9E #9E451B #329E1B

square

#1B749E #871B9E #9E451B #329E1B

split-complementary

#1B749E #9E1B32 #9E871B

monochromatic

#092735 #124E6A #1B749E #249AD2 #52B3E1

Accessibility & contrast

On white

5.20

#1B749E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#1B749E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B749E

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B749E	#FFFFFF	#000000	##FFFFFF
##1B749E	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F73A0

Deuteranopia (green-blind)

#4E679D

Tritanopia (blue-blind)

#007F82

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #1b749e;
/* rgb */ color: rgb(27, 116, 158);
/* oklch */ color: oklch(52.9% 0.103 234.9);

Tailwind

colors: {
  custom: {
    50: '#6f9cbb',
    500: '#1b749e',
    950: '#000000',
  },
}

SCSS

$custom: #1b749e;
$custom-light: #6f9cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b749e",
  "rgb": {
    "r": 27,
    "g": 116,
    "b": 158
  },
  "hsl": {
    "h": 199.237,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.52893,
    "c": 0.10272,
    "h": 234.9
  },
  "luminance": 0.15192
}

Semantic roles & 50–950 ramp

primary

#1B749E

secondary

#C47651

accent

#743AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #1B749E

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

Preview Lab → · Contrast checker → · Palette generator →