#1F3B95#1F3B95

#1F3B95 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.152 H 266.2°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#1F3B95
RGB	rgb(31, 59, 149)
HSL	hsl(226, 66%, 35%)
HSV	hsv(226, 79%, 58%)
CMYK	cmyk(79.2%, 60.4%, 0%, 41.6%)
CIE-LAB	lab(28.35, 23.79, -52.38)
CIE-LCH	lch(28.35, 57.53, 294.43°)
OKLab	oklab(39.12% -0.0102 -0.1513)
OKLCH	oklch(39.12% 0.152 266.2)
XYZ	xyz(7.5519, 5.5883, 29.1086)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3B95 #95791F

analogous

#1F7695 #1F3B95 #3E1F95

triadic

#1F3B95 #951F3B #3B951F

tetradic

#1F3B95 #951F76 #95791F #1F953E

square

#1F3B95 #951F76 #95791F #1F953E

split-complementary

#1F3B95 #953E1F #76951F

monochromatic

#0A1330 #142762 #1F3B95 #2A4FC8 #5373DB

Accessibility & contrast

On white

9.92

#1F3B95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1F3B95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3B95

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3B95	#FFFFFF	#000000	##FFFFFF
##1F3B95	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004998

Deuteranopia (green-blind)

#003E93

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f3b95;
/* rgb */ color: rgb(31, 59, 149);
/* oklch */ color: oklch(39.1% 0.152 266.2);

Tailwind

colors: {
  custom: {
    50: '#6e70b5',
    500: '#1f3b95',
    950: '#000000',
  },
}

SCSS

$custom: #1f3b95;
$custom-light: #6e70b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3b95",
  "rgb": {
    "r": 31,
    "g": 59,
    "b": 149
  },
  "hsl": {
    "h": 225.763,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39123,
    "c": 0.15167,
    "h": 266.2
  },
  "luminance": 0.05589
}

Semantic roles & 50–950 ramp

primary

#1F3B95

secondary

#BFA551

accent

#C03FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3B95

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

Preview Lab → · Contrast checker → · Palette generator →