#1A307A#1A307A

#1A307A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.129 H 266.7°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A307A
RGB	rgb(26, 48, 122)
HSL	hsl(226, 65%, 29%)
HSV	hsv(226, 79%, 48%)
CMYK	cmyk(78.7%, 60.7%, 0%, 52.2%)
CIE-LAB	lab(22.79, 20.10, -44.63)
CIE-LCH	lch(22.79, 48.95, 294.24°)
OKLab	oklab(34.19% -0.0074 -0.1288)
OKLCH	oklch(34.19% 0.129 266.7)
XYZ	xyz(4.9946, 3.7381, 18.8669)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A307A #7A641A

analogous

#1A607A #1A307A #341A7A

triadic

#1A307A #7A1A30 #307A1A

tetradic

#1A307A #7A1A60 #7A641A #1A7A34

square

#1A307A #7A1A60 #7A641A #1A7A34

split-complementary

#1A307A #7A341A #607A1A

monochromatic

#050A19 #0F1C48 #1A307A #2544AC #395DD5

Accessibility & contrast

On white

12.02

#1A307A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1A307A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A307A

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A307A	#FFFFFF	#000000	##FFFFFF
##1A307A	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7C

Deuteranopia (green-blind)

#003279

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1a307a;
/* rgb */ color: rgb(26, 48, 122);
/* oklch */ color: oklch(34.2% 0.129 266.7);

Tailwind

colors: {
  custom: {
    50: '#6767a1',
    500: '#1a307a',
    950: '#000000',
  },
}

SCSS

$custom: #1a307a;
$custom-light: #6767a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a307a",
  "rgb": {
    "r": 26,
    "g": 48,
    "b": 122
  },
  "hsl": {
    "h": 226.25,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3419,
    "c": 0.12906,
    "h": 266.7
  },
  "luminance": 0.03739
}

Semantic roles & 50–950 ramp

primary

#1A307A

secondary

#AE9541

accent

#C140E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A307A

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

Preview Lab → · Contrast checker → · Palette generator →