#1A397D#1A397D

#1A397D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.121 H 263.2°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1A397D
RGB	rgb(26, 57, 125)
HSL	hsl(221, 66%, 30%)
HSV	hsv(221, 79%, 49%)
CMYK	cmyk(79.2%, 54.4%, 0%, 51%)
CIE-LAB	lab(25.64, 14.95, -41.89)
CIE-LCH	lch(25.64, 44.48, 289.64°)
OKLab	oklab(36.42% -0.0143 -0.1206)
OKLCH	oklch(36.42% 0.121 263.2)
XYZ	xyz(5.5895, 4.6259, 19.9964)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A397D #7D5E1A

analogous

#1A6B7D #1A397D #2C1A7D

triadic

#1A397D #7D1A39 #397D1A

tetradic

#1A397D #7D1A6B #7D5E1A #1A7D2C

square

#1A397D #7D1A6B #7D5E1A #1A7D2C

split-complementary

#1A397D #7D2C1A #6B7D1A

monochromatic

#050C19 #0F224A #1A397D #2550B0 #3B6CD6

Accessibility & contrast

On white

10.91

#1A397D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1A397D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A397D

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A397D	#FFFFFF	#000000	##FFFFFF
##1A397D	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09427F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a397d;
/* rgb */ color: rgb(26, 57, 125);
/* oklch */ color: oklch(36.4% 0.121 263.2);

Tailwind

colors: {
  custom: {
    50: '#676ea3',
    500: '#1a397d',
    950: '#000000',
  },
}

SCSS

$custom: #1a397d;
$custom-light: #676ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a397d",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 125
  },
  "hsl": {
    "h": 221.212,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36419,
    "c": 0.12148,
    "h": 263.2
  },
  "luminance": 0.04627
}

Semantic roles & 50–950 ramp

primary

#1A397D

secondary

#B18E42

accent

#B43FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A397D

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

Preview Lab → · Contrast checker → · Palette generator →