#1A128C#1A128C

#1A128C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.4% C 0.184 H 271.2°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#1A128C
RGB	rgb(26, 18, 140)
HSL	hsl(244, 77%, 31%)
HSV	hsv(244, 87%, 55%)
CMYK	cmyk(81.4%, 87.1%, 0%, 45.1%)
CIE-LAB	lab(18.12, 44.84, -63.66)
CIE-LCH	lch(18.12, 77.86, 305.16°)
OKLab	oklab(31.41% 0.0038 -0.1842)
OKLCH	oklch(31.41% 0.184 271.2)
XYZ	xyz(5.3743, 2.5451, 25.0139)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A128C #848C12

analogous

#12478C #1A128C #57128C

triadic

#1A128C #8C1A12 #128C1A

tetradic

#1A128C #8C1247 #848C12 #128C57

square

#1A128C #8C1247 #848C12 #128C57

split-complementary

#1A128C #8C5712 #478C12

monochromatic

#060420 #100B56 #1A128C #2419C2 #3F34E5

Accessibility & contrast

On white

13.91

#1A128C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1A128C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A128C

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A128C	#FFFFFF	#000000	##FFFFFF
##1A128C	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328F

Deuteranopia (green-blind)

#00268A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a128c;
/* rgb */ color: rgb(26, 18, 140);
/* oklch */ color: oklch(31.4% 0.184 271.2);

Tailwind

colors: {
  custom: {
    50: '#6e55af',
    500: '#1a128c',
    950: '#000000',
  },
}

SCSS

$custom: #1a128c;
$custom-light: #6e55af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a128c",
  "rgb": {
    "r": 26,
    "g": 18,
    "b": 140
  },
  "hsl": {
    "h": 243.934,
    "s": 77.215,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3141,
    "c": 0.1842,
    "h": 271.2
  },
  "luminance": 0.02546
}

Semantic roles & 50–950 ramp

primary

#1A128C

secondary

#B8C039

accent

#F434E7

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1A128C

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

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