#1A338B#1A338B

#1A338B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.4% C 0.149 H 266.5°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#1A338B
RGB	rgb(26, 51, 139)
HSL	hsl(227, 68%, 32%)
HSV	hsv(227, 81%, 55%)
CMYK	cmyk(81.3%, 63.3%, 0%, 45.5%)
CIE-LAB	lab(25.11, 24.82, -51.51)
CIE-LCH	lch(25.11, 57.18, 295.73°)
OKLab	oklab(36.38% -0.0092 -0.149)
OKLCH	oklch(36.38% 0.149 266.5)
XYZ	xyz(6.2684, 4.4506, 24.9498)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A338B #8B721A

analogous

#1A6B8B #1A338B #3A1A8B

triadic

#1A338B #8B1A33 #338B1A

tetradic

#1A338B #8B1A6B #8B721A #1A8B3A

square

#1A338B #8B1A6B #8B721A #1A8B3A

split-complementary

#1A338B #8B3A1A #6B8B1A

monochromatic

#070D24 #102057 #1A338B #2446BF #4365DC

Accessibility & contrast

On white

11.11

#1A338B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1A338B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A338B

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A338B	#FFFFFF	#000000	##FFFFFF
##1A338B	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003689

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a338b;
/* rgb */ color: rgb(26, 51, 139);
/* oklch */ color: oklch(36.4% 0.149 266.5);

Tailwind

colors: {
  custom: {
    50: '#6b6aae',
    500: '#1a338b',
    950: '#000000',
  },
}

SCSS

$custom: #1a338b;
$custom-light: #6b6aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a338b",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 139
  },
  "hsl": {
    "h": 226.726,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36384,
    "c": 0.14928,
    "h": 266.5
  },
  "luminance": 0.04451
}

Semantic roles & 50–950 ramp

primary

#1A338B

secondary

#BDA244

accent

#C53CEB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1A338B

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

Preview Lab → · Contrast checker → · Palette generator →