#1F58AC#1F58AC

#1F58AC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.2% C 0.147 H 258.6°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F58AC
RGB	rgb(31, 88, 172)
HSL	hsl(216, 69%, 40%)
HSV	hsv(216, 82%, 67%)
CMYK	cmyk(82%, 48.8%, 0%, 32.5%)
CIE-LAB	lab(38.28, 13.31, -50.12)
CIE-LCH	lch(38.28, 51.85, 284.87°)
OKLab	oklab(47.21% -0.0291 -0.1441)
OKLCH	oklch(47.21% 0.147 258.6)
XYZ	xyz(11.4985, 10.2479, 40.3937)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F58AC #AC731F

analogous

#1F9EAC #1F58AC #2D1FAC

triadic

#1F58AC #AC1F58 #58AC1F

tetradic

#1F58AC #AC1F9E #AC731F #1FAC2D

square

#1F58AC #AC1F9E #AC731F #1FAC2D

split-complementary

#1F58AC #AC2D1F #9EAC1F

monochromatic

#0C2344 #163D78 #1F58AC #2F74D9 #6396E3

Accessibility & contrast

On white

6.89

#1F58AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1F58AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F58AC

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F58AC	#FFFFFF	#000000	##FFFFFF
##1F58AC	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2761AF

Deuteranopia (green-blind)

#0054AA

Tritanopia (blue-blind)

#006C79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1f58ac;
/* rgb */ color: rgb(31, 88, 172);
/* oklch */ color: oklch(47.2% 0.147 258.6);

Tailwind

colors: {
  custom: {
    50: '#7386c5',
    500: '#1f58ac',
    950: '#000000',
  },
}

SCSS

$custom: #1f58ac;
$custom-light: #7386c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f58ac",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 172
  },
  "hsl": {
    "h": 215.745,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47209,
    "c": 0.14703,
    "h": 258.6
  },
  "luminance": 0.10249
}

Semantic roles & 50–950 ramp

primary

#1F58AC

secondary

#C89D5F

accent

#A53CEC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1F58AC

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

Preview Lab → · Contrast checker → · Palette generator →