#1F468B#1F468B

#1F468B is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.7% C 0.123 H 260.8°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#1F468B
RGB	rgb(31, 70, 139)
HSL	hsl(218, 64%, 33%)
HSV	hsv(218, 78%, 55%)
CMYK	cmyk(77.7%, 49.6%, 0%, 45.5%)
CIE-LAB	lab(30.72, 12.24, -42.38)
CIE-LCH	lch(30.72, 44.12, 286.11°)
OKLab	oklab(40.68% -0.0197 -0.1217)
OKLCH	oklch(40.68% 0.123 260.8)
XYZ	xyz(7.4138, 6.5349, 25.2917)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F468B #8B641F

analogous

#1F7C8B #1F468B #2E1F8B

triadic

#1F468B #8B1F46 #468B1F

tetradic

#1F468B #8B1F7C #8B641F #1F8B2E

square

#1F468B #8B1F7C #8B641F #1F8B2E

split-complementary

#1F468B #8B2E1F #7C8B1F

monochromatic

#091427 #142D59 #1F468B #2A5FBD #4D7FD7

Accessibility & contrast

On white

9.10

#1F468B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1F468B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F468B

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F468B	#FFFFFF	#000000	##FFFFFF
##1F468B	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8E

Deuteranopia (green-blind)

#00448A

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f468b;
/* rgb */ color: rgb(31, 70, 139);
/* oklch */ color: oklch(40.7% 0.123 260.8);

Tailwind

colors: {
  custom: {
    50: '#6b78ad',
    500: '#1f468b',
    950: '#000000',
  },
}

SCSS

$custom: #1f468b;
$custom-light: #6b78ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f468b",
  "rgb": {
    "r": 31,
    "g": 70,
    "b": 139
  },
  "hsl": {
    "h": 218.333,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40679,
    "c": 0.12333,
    "h": 260.8
  },
  "luminance": 0.06536
}

Semantic roles & 50–950 ramp

primary

#1F468B

secondary

#BA924C

accent

#AB41E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1F468B

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

Preview Lab → · Contrast checker → · Palette generator →