#1F2A97#1F2A97

#1F2A97 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.2% C 0.175 H 269.8°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A97
RGB	rgb(31, 42, 151)
HSL	hsl(235, 66%, 36%)
HSV	hsv(235, 79%, 59%)
CMYK	cmyk(79.5%, 72.2%, 0%, 40.8%)
CIE-LAB	lab(24.26, 35.82, -60.31)
CIE-LCH	lch(24.26, 70.14, 300.71°)
OKLab	oklab(36.18% -0.0005 -0.1746)
OKLCH	oklch(36.18% 0.175 269.8)
XYZ	xyz(6.9770, 4.1808, 29.7114)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A97 #978C1F

analogous

#1F6697 #1F2A97 #501F97

triadic

#1F2A97 #971F2A #2A971F

tetradic

#1F2A97 #971F66 #978C1F #1F9750

square

#1F2A97 #971F66 #978C1F #1F9750

split-complementary

#1F2A97 #97501F #66971F

monochromatic

#0A0E31 #151C64 #1F2A97 #2938CA #5461DC

Accessibility & contrast

On white

11.44

#1F2A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1F2A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A97

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A97	#FFFFFF	#000000	##FFFFFF
##1F2A97	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9A

Deuteranopia (green-blind)

#003495

Tritanopia (blue-blind)

#00495D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f2a97;
/* rgb */ color: rgb(31, 42, 151);
/* oklch */ color: oklch(36.2% 0.175 269.8);

Tailwind

colors: {
  custom: {
    50: '#7164b7',
    500: '#1f2a97',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a97;
$custom-light: #7164b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a97",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 151
  },
  "hsl": {
    "h": 234.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36181,
    "c": 0.17465,
    "h": 269.8
  },
  "luminance": 0.04182
}

Semantic roles & 50–950 ramp

primary

#1F2A97

secondary

#BFB552

accent

#D93FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #1F2A97

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

Preview Lab → · Contrast checker → · Palette generator →