#1758B4#1758B4

#1758B4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.6% C 0.160 H 258.5°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX#1758B4
RGBrgb(23, 88, 180)
HSLhsl(215, 77%, 40%)
HSVhsv(215, 87%, 71%)
CMYKcmyk(87.2%, 51.1%, 0%, 29.4%)
CIE-LABlab(38.65, 15.83, -54.26)
CIE-LCHlch(38.65, 56.52, 286.26°)
OKLaboklab(47.61% -0.0319 -0.1564)
OKLCHoklch(47.61% 0.16 258.5)
XYZxyz(12.0783, 10.4553, 44.5527)
Luminance0.1046 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1758B4 #B47317
analogous
#17A7B4 #1758B4 #2417B4
triadic
#1758B4 #B41758 #58B417
tetradic
#1758B4 #B417A7 #B47317 #17B424
square
#1758B4 #B417A7 #B47317 #17B424
split-complementary
#1758B4 #B42417 #A7B417
monochromatic
#092347 #103D7E #1758B4 #2574E3 #5B96EA

Accessibility & contrast

On white

6.79
#1758B4 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.09
#1758B4 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1758B4
6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1758B4#FFFFFF#000000##FFFFFF
##1758B41.006.793.096.79
#FFFFFF6.791.0021.001.00
#0000003.0921.001.0021.00
##FFFFFF6.791.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1A62B7
Deuteranopia (green-blind)
#0054B2
Tritanopia (blue-blind)
#006F7D
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #1758b4;
/* rgb */ color: rgb(23, 88, 180);
/* oklch */ color: oklch(47.6% 0.160 258.5);
Tailwind
colors: {
  custom: {
    50: '#7386cb',
    500: '#1758b4',
    950: '#000000',
  },
}
SCSS
$custom: #1758b4;
$custom-light: #7386cb;
$custom-dark: #000000;
JSON
{
  "hex": "#1758b4",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 215.159,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47611,
    "c": 0.15963,
    "h": 258.5
  },
  "luminance": 0.10457
}

Semantic roles & 50–950 ramp

primary
#1758B4
secondary
#CE9D59
accent
#A434F4
background
#F7F8FC
surface
#EEEFF9
border
#C9CAD2
text
#0A0B13
muted
#7C7C82

Preview Lab

Preview with #1758B4

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

Preview Lab → · Contrast checker → · Palette generator →

#1758B4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva