#1A238F#1A238F

#1A238F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.9% C 0.173 H 269.5°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1A238F
RGB	rgb(26, 35, 143)
HSL	hsl(235, 69%, 33%)
HSV	hsv(235, 82%, 56%)
CMYK	cmyk(81.8%, 75.5%, 0%, 43.9%)
CIE-LAB	lab(21.59, 36.85, -59.77)
CIE-LCH	lch(21.59, 70.22, 301.66°)
OKLab	oklab(33.95% -0.0015 -0.1732)
OKLCH	oklch(33.95% 0.173 269.5)
XYZ	xyz(5.9833, 3.4042, 26.3230)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A238F #8F861A

analogous

#1A5D8F #1A238F #4C1A8F

triadic

#1A238F #8F1A23 #238F1A

tetradic

#1A238F #8F1A5D #8F861A #1A8F4C

square

#1A238F #8F1A5D #8F861A #1A8F4C

split-complementary

#1A238F #8F4C1A #5D8F1A

monochromatic

#070A27 #11165B #1A238F #2330C3 #4652DD

Accessibility & contrast

On white

12.49

#1A238F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1A238F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A238F

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A238F	#FFFFFF	#000000	##FFFFFF
##1A238F	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A92

Deuteranopia (green-blind)

#002E8D

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1a238f;
/* rgb */ color: rgb(26, 35, 143);
/* oklch */ color: oklch(33.9% 0.173 269.5);

Tailwind

colors: {
  custom: {
    50: '#6e5fb1',
    500: '#1a238f',
    950: '#000000',
  },
}

SCSS

$custom: #1a238f;
$custom-light: #6e5fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a238f",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 143
  },
  "hsl": {
    "h": 235.385,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33947,
    "c": 0.17317,
    "h": 269.5
  },
  "luminance": 0.03405
}

Semantic roles & 50–950 ramp

primary

#1A238F

secondary

#BFB546

accent

#DE3CEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #1A238F

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

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