#1A398D#1A398D

#1A398D is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.144 H 264.8°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#1A398D
RGB	rgb(26, 57, 141)
HSL	hsl(224, 69%, 33%)
HSV	hsv(224, 82%, 55%)
CMYK	cmyk(81.6%, 59.6%, 0%, 44.7%)
CIE-LAB	lab(26.93, 21.46, -49.78)
CIE-LCH	lch(26.93, 54.21, 293.32°)
OKLab	oklab(37.8% -0.0131 -0.1438)
OKLCH	oklch(37.8% 0.144 264.8)
XYZ	xyz(6.6951, 5.0682, 25.8195)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A398D #8D6E1A

analogous

#1A728D #1A398D #341A8D

triadic

#1A398D #8D1A39 #398D1A

tetradic

#1A398D #8D1A72 #8D6E1A #1A8D34

square

#1A398D #8D1A72 #8D6E1A #1A8D34

split-complementary

#1A398D #8D341A #728D1A

monochromatic

#070F26 #102459 #1A398D #244EC1 #456EDD

Accessibility & contrast

On white

10.43

#1A398D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1A398D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A398D

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A398D	#FFFFFF	#000000	##FFFFFF
##1A398D	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004590

Deuteranopia (green-blind)

#003B8B

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a398d;
/* rgb */ color: rgb(26, 57, 141);
/* oklch */ color: oklch(37.8% 0.144 264.8);

Tailwind

colors: {
  custom: {
    50: '#6b6eaf',
    500: '#1a398d',
    950: '#000000',
  },
}

SCSS

$custom: #1a398d;
$custom-light: #6b6eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1a398d",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 141
  },
  "hsl": {
    "h": 223.826,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37795,
    "c": 0.14442,
    "h": 264.8
  },
  "luminance": 0.05069
}

Semantic roles & 50–950 ramp

primary

#1A398D

secondary

#BE9D45

accent

#BC3CEC

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A398D

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

Preview Lab → · Contrast checker → · Palette generator →