#1A3A7D#1A3A7D

#1A3A7D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.120 H 262.8°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A7D
RGB	rgb(26, 58, 125)
HSL	hsl(221, 66%, 30%)
HSV	hsv(221, 79%, 49%)
CMYK	cmyk(79.2%, 53.6%, 0%, 51%)
CIE-LAB	lab(25.94, 14.24, -41.41)
CIE-LCH	lch(25.94, 43.79, 288.98°)
OKLab	oklab(36.65% -0.0152 -0.1192)
OKLCH	oklch(36.65% 0.12 262.8)
XYZ	xyz(5.6394, 4.7258, 20.0130)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A7D #7D5D1A

analogous

#1A6C7D #1A3A7D #2C1A7D

triadic

#1A3A7D #7D1A3A #3A7D1A

tetradic

#1A3A7D #7D1A6C #7D5D1A #1A7D2C

square

#1A3A7D #7D1A6C #7D5D1A #1A7D2C

split-complementary

#1A3A7D #7D2C1A #6C7D1A

monochromatic

#050C19 #0F224A #1A3A7D #2552B0 #3B6DD6

Accessibility & contrast

On white

10.80

#1A3A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1A3A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A7D

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A7D	#FFFFFF	#000000	##FFFFFF
##1A3A7D	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D427F

Deuteranopia (green-blind)

#00397C

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3a7d;
/* rgb */ color: rgb(26, 58, 125);
/* oklch */ color: oklch(36.6% 0.120 262.8);

Tailwind

colors: {
  custom: {
    50: '#676fa3',
    500: '#1a3a7d',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a7d;
$custom-light: #676fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a7d",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 220.606,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36645,
    "c": 0.12015,
    "h": 262.8
  },
  "luminance": 0.04726
}

Semantic roles & 50–950 ramp

primary

#1A3A7D

secondary

#B18D42

accent

#B23FE9

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3A7D

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

Preview Lab → · Contrast checker → · Palette generator →