#1A258B#1A258B

#1A258B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.166 H 269.4°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1A258B
RGB	rgb(26, 37, 139)
HSL	hsl(234, 68%, 32%)
HSV	hsv(234, 81%, 55%)
CMYK	cmyk(81.3%, 73.4%, 0%, 45.5%)
CIE-LAB	lab(21.60, 34.16, -57.27)
CIE-LCH	lch(21.60, 66.68, 300.81°)
OKLab	oklab(33.82% -0.0018 -0.1659)
OKLCH	oklch(33.82% 0.166 269.4)
XYZ	xyz(5.7462, 3.4062, 24.7757)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A258B #8B801A

analogous

#1A5E8B #1A258B #471A8B

triadic

#1A258B #8B1A25 #258B1A

tetradic

#1A258B #8B1A5E #8B801A #1A8B47

square

#1A258B #8B1A5E #8B801A #1A8B47

split-complementary

#1A258B #8B471A #5E8B1A

monochromatic

#070A24 #101757 #1A258B #2433BF #4352DC

Accessibility & contrast

On white

12.49

#1A258B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1A258B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A258B

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A258B	#FFFFFF	#000000	##FFFFFF
##1A258B	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#004255

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1a258b;
/* rgb */ color: rgb(26, 37, 139);
/* oklch */ color: oklch(33.8% 0.166 269.4);

Tailwind

colors: {
  custom: {
    50: '#6c60ae',
    500: '#1a258b',
    950: '#000000',
  },
}

SCSS

$custom: #1a258b;
$custom-light: #6c60ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a258b",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 139
  },
  "hsl": {
    "h": 234.159,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33822,
    "c": 0.1659,
    "h": 269.4
  },
  "luminance": 0.03407
}

Semantic roles & 50–950 ramp

primary

#1A258B

secondary

#BDB144

accent

#DA3CEB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1A258B

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

Preview Lab → · Contrast checker → · Palette generator →