#0F1B57#0F1B57

#0F1B57 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.109 H 268.5°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#0F1B57
RGB	rgb(15, 27, 87)
HSL	hsl(230, 71%, 20%)
HSV	hsv(230, 83%, 34%)
CMYK	cmyk(82.8%, 69%, 0%, 65.9%)
CIE-LAB	lab(13.07, 19.51, -37.64)
CIE-LCH	lch(13.07, 42.40, 297.41°)
OKLab	oklab(25.82% -0.0028 -0.1089)
OKLCH	oklch(25.82% 0.109 268.5)
XYZ	xyz(2.3086, 1.5733, 9.1970)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F1B57 #574B0F

analogous

#0F3F57 #0F1B57 #270F57

triadic

#0F1B57 #570F1B #1B570F

tetradic

#0F1B57 #570F3F #574B0F #0F5727

square

#0F1B57 #570F3F #574B0F #0F5727

split-complementary

#0F1B57 #57270F #3F570F

monochromatic

#05081A #060B23 #0F1B57 #182B8B #213BBF

Accessibility & contrast

On white

15.97

#0F1B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0F1B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F1B57

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F1B57	#FFFFFF	#000000	##FFFFFF
##0F1B57	1.00	15.97	1.31	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#001E56

Tritanopia (blue-blind)

#002B36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0f1b57;
/* rgb */ color: rgb(15, 27, 87);
/* oklch */ color: oklch(25.8% 0.109 268.5);

Tailwind

colors: {
  custom: {
    50: '#5b5787',
    500: '#0f1b57',
    950: '#000000',
  },
}

SCSS

$custom: #0f1b57;
$custom-light: #5b5787;
$custom-dark: #000000;

JSON

{
  "hex": "#0f1b57",
  "rgb": {
    "r": 15,
    "g": 27,
    "b": 87
  },
  "hsl": {
    "h": 230,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.25822,
    "c": 0.1089,
    "h": 268.5
  },
  "luminance": 0.01574
}

Semantic roles & 50–950 ramp

primary

#0F1B57

secondary

#918131

accent

#D03AED

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #0F1B57

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

Preview Lab → · Contrast checker → · Palette generator →