#1F35A6#1F35A6

#1F35A6 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.6% C 0.182 H 267.8°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F35A6
RGB	rgb(31, 53, 166)
HSL	hsl(230, 69%, 39%)
HSV	hsv(230, 81%, 65%)
CMYK	cmyk(81.3%, 68.1%, 0%, 34.9%)
CIE-LAB	lab(28.35, 34.32, -62.70)
CIE-LCH	lch(28.35, 71.48, 298.70°)
OKLab	oklab(39.6% -0.0071 -0.1816)
OKLCH	oklch(39.6% 0.182 267.8)
XYZ	xyz(8.7187, 5.5897, 36.6884)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F35A6 #A6901F

analogous

#1F78A6 #1F35A6 #4C1FA6

triadic

#1F35A6 #A61F35 #35A61F

tetradic

#1F35A6 #A61F78 #A6901F #1FA64C

square

#1F35A6 #A61F78 #A6901F #1FA64C

split-complementary

#1F35A6 #A64C1F #78A61F

monochromatic

#0C143F #152572 #1F35A6 #2B47D7 #5E74E1

Accessibility & contrast

On white

9.91

#1F35A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1F35A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F35A6

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F35A6	#FFFFFF	#000000	##FFFFFF
##1F35A6	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AA

Deuteranopia (green-blind)

#003CA4

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f35a6;
/* rgb */ color: rgb(31, 53, 166);
/* oklch */ color: oklch(39.6% 0.182 267.8);

Tailwind

colors: {
  custom: {
    50: '#736cc1',
    500: '#1f35a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f35a6;
$custom-light: #736cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f35a6",
  "rgb": {
    "r": 31,
    "g": 53,
    "b": 166
  },
  "hsl": {
    "h": 230.222,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.396,
    "c": 0.18176,
    "h": 267.8
  },
  "luminance": 0.05591
}

Semantic roles & 50–950 ramp

primary

#1F35A6

secondary

#C5B45B

accent

#CF3CEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #1F35A6

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

Preview Lab → · Contrast checker → · Palette generator →