#1A3A7C#1A3A7C

#1A3A7C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.6% C 0.119 H 262.6°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A7C
RGB	rgb(26, 58, 124)
HSL	hsl(220, 65%, 29%)
HSV	hsv(220, 79%, 49%)
CMYK	cmyk(79%, 53.2%, 0%, 51.4%)
CIE-LAB	lab(25.86, 13.83, -40.90)
CIE-LCH	lch(25.86, 43.17, 288.69°)
OKLab	oklab(36.56% -0.0153 -0.1177)
OKLCH	oklch(36.56% 0.119 262.6)
XYZ	xyz(5.5758, 4.7003, 19.6783)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A7C #7C5C1A

analogous

#1A6B7C #1A3A7C #2B1A7C

triadic

#1A3A7C #7C1A3A #3A7C1A

tetradic

#1A3A7C #7C1A6B #7C5C1A #1A7C2B

square

#1A3A7C #7C1A6B #7C5C1A #1A7C2B

split-complementary

#1A3A7C #7C2B1A #6B7C1A

monochromatic

#050C19 #0F2249 #1A3A7C #2552AF #3B6DD6

Accessibility & contrast

On white

10.82

#1A3A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1A3A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A7C

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A7C	#FFFFFF	#000000	##FFFFFF
##1A3A7C	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F427E

Deuteranopia (green-blind)

#00397B

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a3a7c;
/* rgb */ color: rgb(26, 58, 124);
/* oklch */ color: oklch(36.6% 0.119 262.6);

Tailwind

colors: {
  custom: {
    50: '#666fa2',
    500: '#1a3a7c',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a7c;
$custom-light: #666fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a7c",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 124
  },
  "hsl": {
    "h": 220.408,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36564,
    "c": 0.11869,
    "h": 262.6
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#1A3A7C

secondary

#B08C42

accent

#B140E8

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3A7C

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

Preview Lab → · Contrast checker → · Palette generator →