#1F268B#1F268B

#1F268B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.2% C 0.163 H 271.1°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F268B
RGB	rgb(31, 38, 139)
HSL	hsl(236, 64%, 33%)
HSV	hsv(236, 78%, 55%)
CMYK	cmyk(77.7%, 72.7%, 0%, 45.5%)
CIE-LAB	lab(22.09, 33.97, -56.45)
CIE-LCH	lch(22.09, 65.89, 301.04°)
OKLab	oklab(34.24% 0.003 -0.1634)
OKLCH	oklch(34.24% 0.163 271.1)
XYZ	xyz(5.9168, 3.5410, 24.7927)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F268B #8B841F

analogous

#1F5C8B #1F268B #4E1F8B

triadic

#1F268B #8B1F26 #268B1F

tetradic

#1F268B #8B1F5C #8B841F #1F8B4E

square

#1F268B #8B1F5C #8B841F #1F8B4E

split-complementary

#1F268B #8B4E1F #5C8B1F

monochromatic

#090B27 #141859 #1F268B #2A34BD #4D56D7

Accessibility & contrast

On white

12.29

#1F268B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1F268B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F268B

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F268B	#FFFFFF	#000000	##FFFFFF
##1F268B	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8E

Deuteranopia (green-blind)

#003089

Tritanopia (blue-blind)

#004255

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f268b;
/* rgb */ color: rgb(31, 38, 139);
/* oklch */ color: oklch(34.2% 0.163 271.1);

Tailwind

colors: {
  custom: {
    50: '#6e61ae',
    500: '#1f268b',
    950: '#000000',
  },
}

SCSS

$custom: #1f268b;
$custom-light: #6e61ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f268b",
  "rgb": {
    "r": 31,
    "g": 38,
    "b": 139
  },
  "hsl": {
    "h": 236.111,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.34245,
    "c": 0.16344,
    "h": 271.1
  },
  "luminance": 0.03542
}

Semantic roles & 50–950 ramp

primary

#1F268B

secondary

#BAB34C

accent

#DC41E7

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F268B

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

Preview Lab → · Contrast checker → · Palette generator →