#0F428D#0F428D

#0F428D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.135 H 259.0°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#0F428D
RGB	rgb(15, 66, 141)
HSL	hsl(216, 81%, 31%)
HSV	hsv(216, 89%, 55%)
CMYK	cmyk(89.4%, 53.2%, 0%, 44.7%)
CIE-LAB	lab(29.21, 14.22, -46.08)
CIE-LCH	lch(29.21, 48.23, 287.15°)
OKLab	oklab(39.43% -0.0258 -0.1329)
OKLCH	oklch(39.43% 0.135 259)
XYZ	xyz(6.9512, 5.9202, 25.9705)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F428D #8D5A0F

analogous

#0F818D #0F428D #1B0F8D

triadic

#0F428D #8D0F42 #428D0F

tetradic

#0F428D #8D0F81 #8D5A0F #0F8D1B

square

#0F428D #8D0F81 #8D5A0F #0F8D1B

split-complementary

#0F428D #8D1B0F #818D0F

monochromatic

#030E1E #092856 #0F428D #155CC4 #2E79E9

Accessibility & contrast

On white

9.61

#0F428D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#0F428D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F428D

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F428D	#FFFFFF	#000000	##FFFFFF
##0F428D	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4B90

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #0f428d;
/* rgb */ color: rgb(15, 66, 141);
/* oklch */ color: oklch(39.4% 0.135 259.0);

Tailwind

colors: {
  custom: {
    50: '#6875af',
    500: '#0f428d',
    950: '#000000',
  },
}

SCSS

$custom: #0f428d;
$custom-light: #6875af;
$custom-dark: #000000;

JSON

{
  "hex": "#0f428d",
  "rgb": {
    "r": 15,
    "g": 66,
    "b": 141
  },
  "hsl": {
    "h": 215.714,
    "s": 80.769,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39434,
    "c": 0.13542,
    "h": 259
  },
  "luminance": 0.05921
}

Semantic roles & 50–950 ramp

primary

#0F428D

secondary

#C28936

accent

#A731F7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #0F428D

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

Preview Lab → · Contrast checker → · Palette generator →