#1F349C#1F349C

#1F349C is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.170 H 268.0°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F349C
RGB	rgb(31, 52, 156)
HSL	hsl(230, 67%, 37%)
HSV	hsv(230, 80%, 61%)
CMYK	cmyk(80.1%, 66.7%, 0%, 38.8%)
CIE-LAB	lab(27.15, 31.22, -58.62)
CIE-LCH	lch(27.15, 66.41, 298.04°)
OKLab	oklab(38.43% -0.006 -0.1697)
OKLCH	oklch(38.43% 0.17 268)
XYZ	xyz(7.7917, 5.1467, 32.0288)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F349C #9C871F

analogous

#1F739C #1F349C #491F9C

triadic

#1F349C #9C1F34 #349C1F

tetradic

#1F349C #9C1F73 #9C871F #1F9C49

square

#1F349C #9C1F73 #9C871F #1F9C49

split-complementary

#1F349C #9C491F #739C1F

monochromatic

#0B1236 #152369 #1F349C #2945CF #586EDE

Accessibility & contrast

On white

10.35

#1F349C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1F349C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F349C

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F349C	#FFFFFF	#000000	##FFFFFF
##1F349C	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469F

Deuteranopia (green-blind)

#003A9A

Tritanopia (blue-blind)

#005063

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f349c;
/* rgb */ color: rgb(31, 52, 156);
/* oklch */ color: oklch(38.4% 0.170 268.0);

Tailwind

colors: {
  custom: {
    50: '#716bba',
    500: '#1f349c',
    950: '#000000',
  },
}

SCSS

$custom: #1f349c;
$custom-light: #716bba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f349c",
  "rgb": {
    "r": 31,
    "g": 52,
    "b": 156
  },
  "hsl": {
    "h": 229.92,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38429,
    "c": 0.1698,
    "h": 268
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#1F349C

secondary

#C1AF55

accent

#CD3EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1F349C

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

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