#1A3E71#1A3E71

#1A3E71 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.7% C 0.097 H 257.6°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E71
RGB	rgb(26, 62, 113)
HSL	hsl(215, 63%, 27%)
HSV	hsv(215, 77%, 44%)
CMYK	cmyk(77%, 45.1%, 0%, 55.7%)
CIE-LAB	lab(26.32, 6.51, -33.20)
CIE-LCH	lch(26.32, 33.83, 281.10°)
OKLab	oklab(36.67% -0.0209 -0.095)
OKLCH	oklch(36.67% 0.097 257.6)
XYZ	xyz(5.1282, 4.8565, 16.2867)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E71 #714D1A

analogous

#1A6A71 #1A3E71 #211A71

triadic

#1A3E71 #711A3E #3E711A

tetradic

#1A3E71 #711A6A #714D1A #1A7121

square

#1A3E71 #711A6A #714D1A #1A7121

split-complementary

#1A3E71 #71211A #6A711A

monochromatic

#060E19 #0F233F #1A3E71 #2559A3 #3575D0

Accessibility & contrast

On white

10.65

#1A3E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1A3E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E71

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E71	#FFFFFF	#000000	##FFFFFF
##1A3E71	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254373

Deuteranopia (green-blind)

#153B70

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3e71;
/* rgb */ color: rgb(26, 62, 113);
/* oklch */ color: oklch(36.7% 0.097 257.6);

Tailwind

colors: {
  custom: {
    50: '#64729a',
    500: '#1a3e71',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e71;
$custom-light: #64729a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e71",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 113
  },
  "hsl": {
    "h": 215.172,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36669,
    "c": 0.09722,
    "h": 257.6
  },
  "luminance": 0.04857
}

Semantic roles & 50–950 ramp

primary

#1A3E71

secondary

#A67C41

accent

#A242E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1A3E71

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

Preview Lab → · Contrast checker → · Palette generator →