#1A358C#1A358C

#1A358C is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.148 H 265.9°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#1A358C
RGB	rgb(26, 53, 140)
HSL	hsl(226, 69%, 33%)
HSV	hsv(226, 81%, 55%)
CMYK	cmyk(81.4%, 62.1%, 0%, 45.1%)
CIE-LAB	lab(25.74, 23.84, -51.10)
CIE-LCH	lch(25.74, 56.39, 295.01°)
OKLab	oklab(36.88% -0.0105 -0.1478)
OKLCH	oklch(36.88% 0.148 265.9)
XYZ	xyz(6.4311, 4.6585, 25.3661)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A358C #8C711A

analogous

#1A6E8C #1A358C #381A8C

triadic

#1A358C #8C1A35 #358C1A

tetradic

#1A358C #8C1A6E #8C711A #1A8C38

square

#1A358C #8C1A6E #8C711A #1A8C38

split-complementary

#1A358C #8C381A #6E8C1A

monochromatic

#070E25 #102158 #1A358C #2449C0 #4468DC

Accessibility & contrast

On white

10.87

#1A358C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1A358C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A358C

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A358C	#FFFFFF	#000000	##FFFFFF
##1A358C	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428F

Deuteranopia (green-blind)

#00388A

Tritanopia (blue-blind)

#004B5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a358c;
/* rgb */ color: rgb(26, 53, 140);
/* oklch */ color: oklch(36.9% 0.148 265.9);

Tailwind

colors: {
  custom: {
    50: '#6b6bae',
    500: '#1a358c',
    950: '#000000',
  },
}

SCSS

$custom: #1a358c;
$custom-light: #6b6bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a358c",
  "rgb": {
    "r": 26,
    "g": 53,
    "b": 140
  },
  "hsl": {
    "h": 225.789,
    "s": 68.675,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3688,
    "c": 0.14813,
    "h": 265.9
  },
  "luminance": 0.04659
}

Semantic roles & 50–950 ramp

primary

#1A358C

secondary

#BEA144

accent

#C23CEC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1A358C

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

Preview Lab → · Contrast checker → · Palette generator →