#1F58A8#1F58A8

#1F58A8 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 46.9% C 0.142 H 257.9°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F58A8
RGB	rgb(31, 88, 168)
HSL	hsl(215, 69%, 39%)
HSV	hsv(215, 82%, 66%)
CMYK	cmyk(81.5%, 47.6%, 0%, 34.1%)
CIE-LAB	lab(38.02, 11.72, -48.18)
CIE-LCH	lch(38.02, 49.58, 283.67°)
OKLab	oklab(46.92% -0.0297 -0.1384)
OKLCH	oklch(46.92% 0.142 257.9)
XYZ	xyz(11.1201, 10.0966, 38.4009)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F58A8 #A86F1F

analogous

#1F9DA8 #1F58A8 #2A1FA8

triadic

#1F58A8 #A81F58 #58A81F

tetradic

#1F58A8 #A81F9D #A86F1F #1FA82A

square

#1F58A8 #A81F9D #A86F1F #1FA82A

split-complementary

#1F58A8 #A82A1F #9DA81F

monochromatic

#0C2241 #153D74 #1F58A8 #2C74D8 #6096E2

Accessibility & contrast

On white

6.95

#1F58A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#1F58A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F58A8

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F58A8	#FFFFFF	#000000	##FFFFFF
##1F58A8	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B60AB

Deuteranopia (green-blind)

#0054A6

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1f58a8;
/* rgb */ color: rgb(31, 88, 168);
/* oklch */ color: oklch(46.9% 0.142 257.9);

Tailwind

colors: {
  custom: {
    50: '#7286c2',
    500: '#1f58a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f58a8;
$custom-light: #7286c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f58a8",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 168
  },
  "hsl": {
    "h": 215.036,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46917,
    "c": 0.14158,
    "h": 257.9
  },
  "luminance": 0.10098
}

Semantic roles & 50–950 ramp

primary

#1F58A8

secondary

#C69A5D

accent

#A33CEC

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F58A8

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

Preview Lab → · Contrast checker → · Palette generator →