#1A3989#1A3989

#1A3989 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.4% C 0.139 H 264.5°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A3989
RGB	rgb(26, 57, 137)
HSL	hsl(223, 68%, 32%)
HSV	hsv(223, 81%, 54%)
CMYK	cmyk(81%, 58.4%, 0%, 46.3%)
CIE-LAB	lab(26.60, 19.84, -47.84)
CIE-LCH	lch(26.60, 51.79, 292.53°)
OKLab	oklab(37.44% -0.0133 -0.1381)
OKLCH	oklch(37.44% 0.139 264.5)
XYZ	xyz(6.4029, 4.9513, 24.2803)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3989 #896A1A

analogous

#1A7189 #1A3989 #321A89

triadic

#1A3989 #891A39 #39891A

tetradic

#1A3989 #891A71 #896A1A #1A8932

square

#1A3989 #891A71 #896A1A #1A8932

split-complementary

#1A3989 #89321A #71891A

monochromatic

#060E22 #102456 #1A3989 #244EBC #426DDB

Accessibility & contrast

On white

10.55

#1A3989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1A3989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3989

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3989	#FFFFFF	#000000	##FFFFFF
##1A3989	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3989;
/* rgb */ color: rgb(26, 57, 137);
/* oklch */ color: oklch(37.4% 0.139 264.5);

Tailwind

colors: {
  custom: {
    50: '#6a6eac',
    500: '#1a3989',
    950: '#000000',
  },
}

SCSS

$custom: #1a3989;
$custom-light: #6a6eac;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3989",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 137
  },
  "hsl": {
    "h": 223.243,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37441,
    "c": 0.13877,
    "h": 264.5
  },
  "luminance": 0.04952
}

Semantic roles & 50–950 ramp

primary

#1A3989

secondary

#BC9A43

accent

#BA3DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A3989

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

Preview Lab → · Contrast checker → · Palette generator →