#1A1F8B#1A1F8B

#1A1F8B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.9% C 0.172 H 270.2°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A1F8B
RGB	rgb(26, 31, 139)
HSL	hsl(237, 68%, 32%)
HSV	hsv(237, 81%, 55%)
CMYK	cmyk(81.3%, 77.7%, 0%, 45.5%)
CIE-LAB	lab(20.29, 37.82, -59.43)
CIE-LCH	lch(20.29, 70.45, 302.47°)
OKLab	oklab(32.89% 0.0006 -0.1721)
OKLCH	oklch(32.89% 0.172 270.2)
XYZ	xyz(5.5746, 3.0630, 24.7185)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1F8B #8B861A

analogous

#1A588B #1A1F8B #4D1A8B

triadic

#1A1F8B #8B1A1F #1F8B1A

tetradic

#1A1F8B #8B1A58 #8B861A #1A8B4D

square

#1A1F8B #8B1A58 #8B861A #1A8B4D

split-complementary

#1A1F8B #8B4D1A #588B1A

monochromatic

#070824 #101457 #1A1F8B #242ABF #434ADC

Accessibility & contrast

On white

13.02

#1A1F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1A1F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1F8B

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1F8B	#FFFFFF	#000000	##FFFFFF
##1A1F8B	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#002B89

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1a1f8b;
/* rgb */ color: rgb(26, 31, 139);
/* oklch */ color: oklch(32.9% 0.172 270.2);

Tailwind

colors: {
  custom: {
    50: '#6d5cae',
    500: '#1a1f8b',
    950: '#000000',
  },
}

SCSS

$custom: #1a1f8b;
$custom-light: #6d5cae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1f8b",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 139
  },
  "hsl": {
    "h": 237.345,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32889,
    "c": 0.17213,
    "h": 270.2
  },
  "luminance": 0.03064
}

Semantic roles & 50–950 ramp

primary

#1A1F8B

secondary

#BDB844

accent

#E43CEB

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080410

muted

#7B797F

Preview Lab

Preview with #1A1F8B

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

Preview Lab → · Contrast checker → · Palette generator →