#1A398B#1A398B

#1A398B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.6% C 0.142 H 264.7°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#1A398B
RGB	rgb(26, 57, 139)
HSL	hsl(224, 68%, 32%)
HSV	hsv(224, 81%, 55%)
CMYK	cmyk(81.3%, 59%, 0%, 45.5%)
CIE-LAB	lab(26.76, 20.65, -48.81)
CIE-LCH	lch(26.76, 53.00, 292.93°)
OKLab	oklab(37.62% -0.0132 -0.141)
OKLCH	oklch(37.62% 0.142 264.7)
XYZ	xyz(6.5477, 5.0092, 25.0429)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A398B #8B6C1A

analogous

#1A718B #1A398B #341A8B

triadic

#1A398B #8B1A39 #398B1A

tetradic

#1A398B #8B1A71 #8B6C1A #1A8B34

square

#1A398B #8B1A71 #8B6C1A #1A8B34

split-complementary

#1A398B #8B341A #718B1A

monochromatic

#070F24 #102457 #1A398B #244EBF #436DDC

Accessibility & contrast

On white

10.49

#1A398B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1A398B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A398B

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A398B	#FFFFFF	#000000	##FFFFFF
##1A398B	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458E

Deuteranopia (green-blind)

#003A89

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a398b;
/* rgb */ color: rgb(26, 57, 139);
/* oklch */ color: oklch(37.6% 0.142 264.7);

Tailwind

colors: {
  custom: {
    50: '#6a6eae',
    500: '#1a398b',
    950: '#000000',
  },
}

SCSS

$custom: #1a398b;
$custom-light: #6a6eae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a398b",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 139
  },
  "hsl": {
    "h": 223.54,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37618,
    "c": 0.14161,
    "h": 264.7
  },
  "luminance": 0.0501
}

Semantic roles & 50–950 ramp

primary

#1A398B

secondary

#BD9C44

accent

#BB3CEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A398B

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

Preview Lab → · Contrast checker → · Palette generator →