#1A58B3#1A58B3

#1A58B3 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.6% C 0.158 H 258.8°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#1A58B3
RGB	rgb(26, 88, 179)
HSL	hsl(216, 75%, 40%)
HSV	hsv(216, 85%, 70%)
CMYK	cmyk(85.5%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(38.64, 15.65, -53.68)
CIE-LCH	lch(38.64, 55.91, 286.25°)
OKLab	oklab(47.6% -0.0306 -0.1547)
OKLCH	oklch(47.6% 0.158 258.8)
XYZ	xyz(12.0494, 10.4522, 44.0215)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A58B3 #B3751A

analogous

#1AA5B3 #1A58B3 #281AB3

triadic

#1A58B3 #B31A58 #58B31A

tetradic

#1A58B3 #B31AA5 #B3751A #1AB328

square

#1A58B3 #B31AA5 #B3751A #1AB328

split-complementary

#1A58B3 #B3281A #A5B31A

monochromatic

#0A2348 #123E7E #1A58B3 #2A74E0 #6097E8

Accessibility & contrast

On white

6.79

#1A58B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#1A58B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1A58B3

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A58B3	#FFFFFF	#000000	##FFFFFF
##1A58B3	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)

#1C62B6

Deuteranopia (green-blind)

#0055B1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1a58b3;
/* rgb */ color: rgb(26, 88, 179);
/* oklch */ color: oklch(47.6% 0.158 258.8);

Tailwind

colors: {
  custom: {
    50: '#7386ca',
    500: '#1a58b3',
    950: '#000000',
  },
}

SCSS

$custom: #1a58b3;
$custom-light: #7386ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1a58b3",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 215.686,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47603,
    "c": 0.15768,
    "h": 258.8
  },
  "luminance": 0.10454
}

Semantic roles & 50–950 ramp

primary

#1A58B3

secondary

#CC9F5D

accent

#A637F1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1A58B3

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

Preview Lab → · Contrast checker → · Palette generator →