#1A3A7F#1A3A7F

#1A3A7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.123 H 263.0°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A7F
RGB	rgb(26, 58, 127)
HSL	hsl(221, 66%, 30%)
HSV	hsv(221, 80%, 50%)
CMYK	cmyk(79.5%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(26.09, 15.07, -42.42)
CIE-LCH	lch(26.09, 45.01, 289.55°)
OKLab	oklab(36.81% -0.0149 -0.1222)
OKLCH	oklch(36.81% 0.123 263)
XYZ	xyz(5.7685, 4.7774, 20.6927)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A7F #7F5F1A

analogous

#1A6D7F #1A3A7F #2C1A7F

triadic

#1A3A7F #7F1A3A #3A7F1A

tetradic

#1A3A7F #7F1A6D #7F5F1A #1A7F2C

square

#1A3A7F #7F1A6D #7F5F1A #1A7F2C

split-complementary

#1A3A7F #7F2C1A #6D7F1A

monochromatic

#050C19 #10234C #1A3A7F #2451B2 #3C6DD7

Accessibility & contrast

On white

10.74

#1A3A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1A3A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A7F

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A7F	#FFFFFF	#000000	##FFFFFF
##1A3A7F	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094381

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3a7f;
/* rgb */ color: rgb(26, 58, 127);
/* oklch */ color: oklch(36.8% 0.123 263.0);

Tailwind

colors: {
  custom: {
    50: '#676fa5',
    500: '#1a3a7f',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a7f;
$custom-light: #676fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a7f",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 220.99,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.36809,
    "c": 0.12308,
    "h": 263
  },
  "luminance": 0.04778
}

Semantic roles & 50–950 ramp

primary

#1A3A7F

secondary

#B38F42

accent

#B33FE9

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3A7F

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

Preview Lab → · Contrast checker → · Palette generator →