#1F2FA0#1F2FA0

#1F2FA0 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.0% C 0.181 H 268.8°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F2FA0
RGB	rgb(31, 47, 160)
HSL	hsl(233, 68%, 37%)
HSV	hsv(233, 81%, 63%)
CMYK	cmyk(80.6%, 70.6%, 0%, 37.3%)
CIE-LAB	lab(26.34, 35.95, -62.39)
CIE-LCH	lch(26.34, 72.00, 299.95°)
OKLab	oklab(37.96% -0.0038 -0.1807)
OKLCH	oklch(37.96% 0.181 268.8)
XYZ	xyz(7.9246, 4.8615, 33.7716)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2FA0 #A0901F

analogous

#1F70A0 #1F2FA0 #4F1FA0

triadic

#1F2FA0 #A01F2F #2FA01F

tetradic

#1F2FA0 #A01F70 #A0901F #1FA04F

square

#1F2FA0 #A01F70 #A0901F #1FA04F

split-complementary

#1F2FA0 #A04F1F #70A01F

monochromatic

#0B1139 #15206D #1F2FA0 #293ED3 #5A6BDF

Accessibility & contrast

On white

10.65

#1F2FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1F2FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2FA0

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2FA0	#FFFFFF	#000000	##FFFFFF
##1F2FA0	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A3

Deuteranopia (green-blind)

#00389E

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f2fa0;
/* rgb */ color: rgb(31, 47, 160);
/* oklch */ color: oklch(38.0% 0.181 268.8);

Tailwind

colors: {
  custom: {
    50: '#7268bd',
    500: '#1f2fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1f2fa0;
$custom-light: #7268bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2fa0",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 160
  },
  "hsl": {
    "h": 232.558,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.37956,
    "c": 0.18076,
    "h": 268.8
  },
  "luminance": 0.04862
}

Semantic roles & 50–950 ramp

primary

#1F2FA0

secondary

#C3B658

accent

#D53DEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1F2FA0

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

Preview Lab → · Contrast checker → · Palette generator →