#1A3F88#1A3F88

#1A3F88 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.7% C 0.130 H 262.1°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F88
RGB	rgb(26, 63, 136)
HSL	hsl(220, 68%, 32%)
HSV	hsv(220, 81%, 53%)
CMYK	cmyk(80.9%, 53.7%, 0%, 46.7%)
CIE-LAB	lab(28.25, 15.25, -44.53)
CIE-LCH	lch(28.25, 47.07, 288.90°)
OKLab	oklab(38.67% -0.0179 -0.1283)
OKLCH	oklch(38.67% 0.13 262.1)
XYZ	xyz(6.6458, 5.5514, 24.0090)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F88 #88631A

analogous

#1A7688 #1A3F88 #2C1A88

triadic

#1A3F88 #881A3F #3F881A

tetradic

#1A3F88 #881A76 #88631A #1A882C

square

#1A3F88 #881A76 #88631A #1A882C

split-complementary

#1A3F88 #882C1A #76881A

monochromatic

#060F21 #102755 #1A3F88 #2457BB #4275DB

Accessibility & contrast

On white

9.95

#1A3F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1A3F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F88

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F88	#FFFFFF	#000000	##FFFFFF
##1A3F88	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B488B

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3f88;
/* rgb */ color: rgb(26, 63, 136);
/* oklch */ color: oklch(38.7% 0.130 262.1);

Tailwind

colors: {
  custom: {
    50: '#6973ab',
    500: '#1a3f88',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f88;
$custom-light: #6973ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f88",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 136
  },
  "hsl": {
    "h": 219.818,
    "s": 67.901,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3867,
    "c": 0.12953,
    "h": 262.1
  },
  "luminance": 0.05552
}

Semantic roles & 50–950 ramp

primary

#1A3F88

secondary

#BB9343

accent

#B03DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1A3F88

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

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