#1A397A#1A397A

#1A397A is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.117 H 262.8°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#1A397A
RGB	rgb(26, 57, 122)
HSL	hsl(221, 65%, 29%)
HSV	hsv(221, 79%, 48%)
CMYK	cmyk(78.7%, 53.3%, 0%, 52.2%)
CIE-LAB	lab(25.41, 13.72, -40.36)
CIE-LCH	lch(25.41, 42.63, 288.77°)
OKLab	oklab(36.17% -0.0147 -0.1161)
OKLCH	oklch(36.17% 0.117 262.8)
XYZ	xyz(5.4007, 4.5504, 19.0023)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A397A #7A5B1A

analogous

#1A697A #1A397A #2B1A7A

triadic

#1A397A #7A1A39 #397A1A

tetradic

#1A397A #7A1A69 #7A5B1A #1A7A2B

square

#1A397A #7A1A69 #7A5B1A #1A7A2B

split-complementary

#1A397A #7A2B1A #697A1A

monochromatic

#050C19 #0F2148 #1A397A #2551AC #396CD5

Accessibility & contrast

On white

10.99

#1A397A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1A397A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A397A

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A397A	#FFFFFF	#000000	##FFFFFF
##1A397A	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F417C

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a397a;
/* rgb */ color: rgb(26, 57, 122);
/* oklch */ color: oklch(36.2% 0.117 262.8);

Tailwind

colors: {
  custom: {
    50: '#666ea1',
    500: '#1a397a',
    950: '#000000',
  },
}

SCSS

$custom: #1a397a;
$custom-light: #666ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a397a",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 122
  },
  "hsl": {
    "h": 220.625,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36173,
    "c": 0.11708,
    "h": 262.8
  },
  "luminance": 0.04551
}

Semantic roles & 50–950 ramp

primary

#1A397A

secondary

#AE8B41

accent

#B240E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A397A

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

Preview Lab → · Contrast checker → · Palette generator →