#1F4B95#1F4B95

#1F4B95 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.6% C 0.131 H 260.2°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1F4B95
RGB	rgb(31, 75, 149)
HSL	hsl(218, 66%, 35%)
HSV	hsv(218, 79%, 58%)
CMYK	cmyk(79.2%, 49.7%, 0%, 41.6%)
CIE-LAB	lab(32.90, 12.84, -44.99)
CIE-LCH	lch(32.90, 46.79, 285.93°)
OKLab	oklab(42.57% -0.0223 -0.1293)
OKLCH	oklch(42.57% 0.131 260.2)
XYZ	xyz(8.5040, 7.4924, 29.4259)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4B95 #95691F

analogous

#1F8695 #1F4B95 #2E1F95

triadic

#1F4B95 #951F4B #4B951F

tetradic

#1F4B95 #951F86 #95691F #1F952E

square

#1F4B95 #951F86 #95691F #1F952E

split-complementary

#1F4B95 #952E1F #86951F

monochromatic

#0A1830 #143162 #1F4B95 #2A64C8 #5386DB

Accessibility & contrast

On white

8.40

#1F4B95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1F4B95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4B95

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4B95	#FFFFFF	#000000	##FFFFFF
##1F4B95	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#205398

Deuteranopia (green-blind)

#004894

Tritanopia (blue-blind)

#005D69

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4b95;
/* rgb */ color: rgb(31, 75, 149);
/* oklch */ color: oklch(42.6% 0.131 260.2);

Tailwind

colors: {
  custom: {
    50: '#6e7cb5',
    500: '#1f4b95',
    950: '#000000',
  },
}

SCSS

$custom: #1f4b95;
$custom-light: #6e7cb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4b95",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 149
  },
  "hsl": {
    "h": 217.627,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42572,
    "c": 0.13124,
    "h": 260.2
  },
  "luminance": 0.07493
}

Semantic roles & 50–950 ramp

primary

#1F4B95

secondary

#BF9651

accent

#A93FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4B95

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

Preview Lab → · Contrast checker → · Palette generator →