#0F3A57#0F3A57

#0F3A57 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.5% C 0.069 H 242.8°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#0F3A57
RGB	rgb(15, 58, 87)
HSL	hsl(204, 71%, 20%)
HSV	hsv(204, 83%, 34%)
CMYK	cmyk(82.8%, 33.3%, 0%, 65.9%)
CIE-LAB	lab(23.05, -3.10, -21.59)
CIE-LCH	lch(23.05, 21.82, 261.83°)
OKLab	oklab(33.49% -0.0315 -0.0612)
OKLCH	oklch(33.49% 0.069 242.8)
XYZ	xyz(3.4297, 3.8154, 9.5707)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3A57 #572C0F

analogous

#0F5750 #0F3A57 #0F1657

triadic

#0F3A57 #570F3A #3A570F

tetradic

#0F3A57 #500F57 #572C0F #16570F

square

#0F3A57 #500F57 #572C0F #16570F

split-complementary

#0F3A57 #570F16 #57500F

monochromatic

#05111A #061723 #0F3A57 #185D8B #2180BF

Accessibility & contrast

On white

11.91

#0F3A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#0F3A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3A57

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3A57	#FFFFFF	#000000	##FFFFFF
##0F3A57	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3B58

Deuteranopia (green-blind)

#233456

Tritanopia (blue-blind)

#004144

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #0f3a57;
/* rgb */ color: rgb(15, 58, 87);
/* oklch */ color: oklch(33.5% 0.069 242.8);

Tailwind

colors: {
  custom: {
    50: '#5a6f86',
    500: '#0f3a57',
    950: '#000000',
  },
}

SCSS

$custom: #0f3a57;
$custom-light: #5a6f86;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3a57",
  "rgb": {
    "r": 15,
    "g": 58,
    "b": 87
  },
  "hsl": {
    "h": 204.167,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.3349,
    "c": 0.06882,
    "h": 242.8
  },
  "luminance": 0.03816
}

Semantic roles & 50–950 ramp

primary

#0F3A57

secondary

#915831

accent

#833AED

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #0F3A57

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

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