#1B749F#1B749F

#1B749F is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 52.9% C 0.104 H 235.5°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B749F
RGB	rgb(27, 116, 159)
HSL	hsl(200, 71%, 36%)
HSV	hsv(200, 83%, 62%)
CMYK	cmyk(83%, 27%, 0%, 37.6%)
CIE-LAB	lab(45.94, -9.68, -30.27)
CIE-LCH	lch(45.94, 31.79, 252.26°)
OKLab	oklab(52.95% -0.0587 -0.0855)
OKLCH	oklch(52.95% 0.104 235.5)
XYZ	xyz(12.9529, 15.2254, 35.0503)
Luminance	0.1523 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B749F #9F461B

analogous

#1B9F88 #1B749F #1B329F

triadic

#1B749F #9F1B74 #749F1B

tetradic

#1B749F #881B9F #9F461B #329F1B

square

#1B749F #881B9F #9F461B #329F1B

split-complementary

#1B749F #9F1B32 #9F881B

monochromatic

#092836 #124E6B #1B749F #249AD3 #53B3E2

Accessibility & contrast

On white

5.19

#1B749F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#1B749F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B749F

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B749F	#FFFFFF	#000000	##FFFFFF
##1B749F	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F73A1

Deuteranopia (green-blind)

#4E679E

Tritanopia (blue-blind)

#007F83

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #1b749f;
/* rgb */ color: rgb(27, 116, 159);
/* oklch */ color: oklch(52.9% 0.104 235.5);

Tailwind

colors: {
  custom: {
    50: '#6f9cbb',
    500: '#1b749f',
    950: '#000000',
  },
}

SCSS

$custom: #1b749f;
$custom-light: #6f9cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b749f",
  "rgb": {
    "r": 27,
    "g": 116,
    "b": 159
  },
  "hsl": {
    "h": 199.545,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.52946,
    "c": 0.10375,
    "h": 235.5
  },
  "luminance": 0.15227
}

Semantic roles & 50–950 ramp

primary

#1B749F

secondary

#C57751

accent

#753AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1B749F

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

Preview Lab → · Contrast checker → · Palette generator →