#1755B4#1755B4

#1755B4 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.0% C 0.163 H 259.5°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1755B4
RGB	rgb(23, 85, 180)
HSL	hsl(216, 77%, 40%)
HSV	hsv(216, 87%, 71%)
CMYK	cmyk(87.2%, 52.8%, 0%, 29.4%)
CIE-LAB	lab(37.79, 17.82, -55.64)
CIE-LCH	lch(37.79, 58.43, 287.76°)
OKLab	oklab(46.96% -0.0299 -0.1605)
OKLCH	oklch(46.96% 0.163 259.5)
XYZ	xyz(11.8370, 9.9729, 44.4723)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1755B4 #B47617

analogous

#17A3B4 #1755B4 #2817B4

triadic

#1755B4 #B41755 #55B417

tetradic

#1755B4 #B417A3 #B47617 #17B428

square

#1755B4 #B417A3 #B47617 #17B428

split-complementary

#1755B4 #B42817 #A3B417

monochromatic

#092247 #103B7E #1755B4 #2570E3 #5B94EA

Accessibility & contrast

On white

7.01

#1755B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#1755B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1755B4

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1755B4	#FFFFFF	#000000	##FFFFFF
##1755B4	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B60B7

Deuteranopia (green-blind)

#0052B2

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1755b4;
/* rgb */ color: rgb(23, 85, 180);
/* oklch */ color: oklch(47.0% 0.163 259.5);

Tailwind

colors: {
  custom: {
    50: '#7384cb',
    500: '#1755b4',
    950: '#000000',
  },
}

SCSS

$custom: #1755b4;
$custom-light: #7384cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1755b4",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 180
  },
  "hsl": {
    "h": 216.306,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46958,
    "c": 0.16331,
    "h": 259.5
  },
  "luminance": 0.09974
}

Semantic roles & 50–950 ramp

primary

#1755B4

secondary

#CEA059

accent

#A834F4

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1755B4

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

Preview Lab → · Contrast checker → · Palette generator →