#1A3D88#1A3D88

#1A3D88 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.132 H 262.9°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D88
RGB	rgb(26, 61, 136)
HSL	hsl(221, 68%, 32%)
HSV	hsv(221, 81%, 53%)
CMYK	cmyk(80.9%, 55.1%, 0%, 46.7%)
CIE-LAB	lab(27.67, 16.64, -45.48)
CIE-LCH	lch(27.67, 48.43, 290.10°)
OKLab	oklab(38.22% -0.0163 -0.1311)
OKLCH	oklch(38.22% 0.132 262.9)
XYZ	xyz(6.5371, 5.3339, 23.9728)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D88 #88651A

analogous

#1A7488 #1A3D88 #2E1A88

triadic

#1A3D88 #881A3D #3D881A

tetradic

#1A3D88 #881A74 #88651A #1A882E

square

#1A3D88 #881A74 #88651A #1A882E

split-complementary

#1A3D88 #882E1A #74881A

monochromatic

#060F21 #102655 #1A3D88 #2454BB #4272DB

Accessibility & contrast

On white

10.16

#1A3D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1A3D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D88

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D88	#FFFFFF	#000000	##FFFFFF
##1A3D88	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01478B

Deuteranopia (green-blind)

#003D87

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3d88;
/* rgb */ color: rgb(26, 61, 136);
/* oklch */ color: oklch(38.2% 0.132 262.9);

Tailwind

colors: {
  custom: {
    50: '#6971ab',
    500: '#1a3d88',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d88;
$custom-light: #6971ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d88",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 136
  },
  "hsl": {
    "h": 220.909,
    "s": 67.901,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38225,
    "c": 0.13214,
    "h": 262.9
  },
  "luminance": 0.05335
}

Semantic roles & 50–950 ramp

primary

#1A3D88

secondary

#BB9543

accent

#B33DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3D88

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

Preview Lab → · Contrast checker → · Palette generator →