#1A58B4#1A58B4

#1A58B4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.159 H 258.9°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#1A58B4
RGB	rgb(26, 88, 180)
HSL	hsl(216, 75%, 40%)
HSV	hsv(216, 86%, 71%)
CMYK	cmyk(85.6%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(38.71, 16.05, -54.15)
CIE-LCH	lch(38.71, 56.48, 286.51°)
OKLab	oklab(47.68% -0.0305 -0.1561)
OKLCH	oklch(47.68% 0.159 258.9)
XYZ	xyz(12.1509, 10.4928, 44.5561)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A58B4 #B4761A

analogous

#1AA5B4 #1A58B4 #291AB4

triadic

#1A58B4 #B41A58 #58B41A

tetradic

#1A58B4 #B41AA5 #B4761A #1AB429

square

#1A58B4 #B41AA5 #B4761A #1AB429

split-complementary

#1A58B4 #B4291A #A5B41A

monochromatic

#0B2449 #123E7F #1A58B4 #2B74E0 #6097E8

Accessibility & contrast

On white

6.78

#1A58B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#1A58B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1A58B4

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A58B4	#FFFFFF	#000000	##FFFFFF
##1A58B4	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B62B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1a58b4;
/* rgb */ color: rgb(26, 88, 180);
/* oklch */ color: oklch(47.7% 0.159 258.9);

Tailwind

colors: {
  custom: {
    50: '#7386cb',
    500: '#1a58b4',
    950: '#000000',
  },
}

SCSS

$custom: #1a58b4;
$custom-light: #7386cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a58b4",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 215.844,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47679,
    "c": 0.15902,
    "h": 258.9
  },
  "luminance": 0.10494
}

Semantic roles & 50–950 ramp

primary

#1A58B4

secondary

#CCA05D

accent

#A636F1

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1A58B4

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

Preview Lab → · Contrast checker → · Palette generator →