#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
RGB	rgb(23, 88, 180)
HSL	hsl(215, 77%, 40%)
HSV	hsv(215, 87%, 71%)
CMYK	cmyk(87.2%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(38.65, 15.83, -54.26)
CIE-LCH	lch(38.65, 56.52, 286.26°)
OKLab	oklab(47.61% -0.0319 -0.1564)
OKLCH	oklch(47.61% 0.16 258.5)
XYZ	xyz(12.0783, 10.4553, 44.5527)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	blue

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
##1758B4	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

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 →