#1A3988#1A3988

#1A3988 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.137 H 264.4°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#1A3988
RGB	rgb(26, 57, 136)
HSL	hsl(223, 68%, 32%)
HSV	hsv(223, 81%, 53%)
CMYK	cmyk(80.9%, 58.1%, 0%, 46.7%)
CIE-LAB	lab(26.51, 19.44, -47.35)
CIE-LCH	lch(26.51, 51.19, 292.32°)
OKLab	oklab(37.35% -0.0134 -0.1367)
OKLCH	oklch(37.35% 0.137 264.4)
XYZ	xyz(6.3315, 4.9227, 23.9043)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3988 #88691A

analogous

#1A7088 #1A3988 #321A88

triadic

#1A3988 #881A39 #39881A

tetradic

#1A3988 #881A70 #88691A #1A8832

square

#1A3988 #881A70 #88691A #1A8832

split-complementary

#1A3988 #88321A #70881A

monochromatic

#060E21 #102355 #1A3988 #244FBB #426DDB

Accessibility & contrast

On white

10.58

#1A3988 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1A3988 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3988

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3988	#FFFFFF	#000000	##FFFFFF
##1A3988	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3988;
/* rgb */ color: rgb(26, 57, 136);
/* oklch */ color: oklch(37.4% 0.137 264.4);

Tailwind

colors: {
  custom: {
    50: '#6a6eab',
    500: '#1a3988',
    950: '#000000',
  },
}

SCSS

$custom: #1a3988;
$custom-light: #6a6eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3988",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 136
  },
  "hsl": {
    "h": 223.091,
    "s": 67.901,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37354,
    "c": 0.13735,
    "h": 264.4
  },
  "luminance": 0.04923
}

Semantic roles & 50–950 ramp

primary

#1A3988

secondary

#BB9943

accent

#BA3DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3988

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

Preview Lab → · Contrast checker → · Palette generator →