#1758B3#1758B3

#1758B3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.5% C 0.158 H 258.3°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#1758B3
RGB	rgb(23, 88, 179)
HSL	hsl(215, 77%, 40%)
HSV	hsv(215, 87%, 70%)
CMYK	cmyk(87.2%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(38.58, 15.43, -53.79)
CIE-LCH	lch(38.58, 55.95, 286.00°)
OKLab	oklab(47.53% -0.032 -0.155)
OKLCH	oklch(47.53% 0.158 258.3)
XYZ	xyz(11.9768, 10.4147, 44.0181)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1758B3 #B37217

analogous

#17A6B3 #1758B3 #2417B3

triadic

#1758B3 #B31758 #58B317

tetradic

#1758B3 #B317A6 #B37217 #17B324

square

#1758B3 #B317A6 #B37217 #17B324

split-complementary

#1758B3 #B32417 #A6B317

monochromatic

#092347 #103D7D #1758B3 #2474E3 #5B96EA

Accessibility & contrast

On white

6.81

#1758B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#1758B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1758B3

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1758B3	#FFFFFF	#000000	##FFFFFF
##1758B3	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C62B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1758b3;
/* rgb */ color: rgb(23, 88, 179);
/* oklch */ color: oklch(47.5% 0.158 258.3);

Tailwind

colors: {
  custom: {
    50: '#7286ca',
    500: '#1758b3',
    950: '#000000',
  },
}

SCSS

$custom: #1758b3;
$custom-light: #7286ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1758b3",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 215,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47534,
    "c": 0.15829,
    "h": 258.3
  },
  "luminance": 0.10416
}

Semantic roles & 50–950 ramp

primary

#1758B3

secondary

#CD9D58

accent

#A434F4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1758B3

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

Preview Lab → · Contrast checker → · Palette generator →