#1F4E95#1F4E95

#1F4E95 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.127 H 258.8°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E95
RGB	rgb(31, 78, 149)
HSL	hsl(216, 66%, 35%)
HSV	hsv(216, 79%, 58%)
CMYK	cmyk(79.2%, 47.7%, 0%, 41.6%)
CIE-LAB	lab(33.79, 10.82, -43.56)
CIE-LCH	lch(33.79, 44.88, 283.95°)
OKLab	oklab(43.26% -0.0249 -0.125)
OKLCH	oklch(43.26% 0.127 258.8)
XYZ	xyz(8.7123, 7.9090, 29.4954)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E95 #95661F

analogous

#1F8995 #1F4E95 #2B1F95

triadic

#1F4E95 #951F4E #4E951F

tetradic

#1F4E95 #951F89 #95661F #1F952B

square

#1F4E95 #951F89 #95661F #1F952B

split-complementary

#1F4E95 #952B1F #89951F

monochromatic

#0A1930 #143362 #1F4E95 #2A69C8 #5389DB

Accessibility & contrast

On white

8.13

#1F4E95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1F4E95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E95

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E95	#FFFFFF	#000000	##FFFFFF
##1F4E95	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275598

Deuteranopia (green-blind)

#074A94

Tritanopia (blue-blind)

#005F6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4e95;
/* rgb */ color: rgb(31, 78, 149);
/* oklch */ color: oklch(43.3% 0.127 258.8);

Tailwind

colors: {
  custom: {
    50: '#6d7fb5',
    500: '#1f4e95',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e95;
$custom-light: #6d7fb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e95",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 149
  },
  "hsl": {
    "h": 216.102,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.43256,
    "c": 0.12749,
    "h": 258.8
  },
  "luminance": 0.0791
}

Semantic roles & 50–950 ramp

primary

#1F4E95

secondary

#BF9351

accent

#A53FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1F4E95

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

Preview Lab → · Contrast checker → · Palette generator →