#10304E#10304E

#10304E is a dark, moderate cyan. Relative luminance 0.028; OKLCH L 30.2% C 0.066 H 249.7°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX#10304E
RGBrgb(16, 48, 78)
HSLhsl(209, 66%, 18%)
HSVhsv(209, 79%, 31%)
CMYKcmyk(79.5%, 38.5%, 0%, 69.4%)
CIE-LABlab(19.11, 0.17, -21.81)
CIE-LCHlch(19.11, 21.81, 270.45°)
OKLaboklab(30.23% -0.0229 -0.062)
OKLCHoklch(30.23% 0.066 249.7)
XYZxyz(2.6453, 2.7738, 7.6022)
Luminance0.0277 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#10304E #4E2E10
analogous
#104E4D #10304E #10114E
triadic
#10304E #4E1030 #304E10
tetradic
#10304E #4D104E #4E2E10 #114E10
square
#10304E #4D104E #4E2E10 #114E10
split-complementary
#10304E #4E1011 #4E4D10
monochromatic
#051019 #06111B #10304E #1A4F81 #256FB4

Accessibility & contrast

On white

13.51
#10304E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.55
#10304E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10304E
13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##10304E#FFFFFF#000000##FFFFFF
##10304E1.0013.511.5513.51
#FFFFFF13.511.0021.001.00
#0000001.5521.001.0021.00
##FFFFFF13.511.0021.001.00

Color blindness preview

Protanopia (red-blind)
#22324F
Deuteranopia (green-blind)
#192C4D
Tritanopia (blue-blind)
#00373B
Achromatopsia (no color)
#2E2E2E

Design tokens & code

CSS
--color: #10304e;
/* rgb */ color: rgb(16, 48, 78);
/* oklch */ color: oklch(30.2% 0.066 249.7);
Tailwind
colors: {
  custom: {
    50: '#586880',
    500: '#10304e',
    950: '#000000',
  },
}
SCSS
$custom: #10304e;
$custom-light: #586880;
$custom-dark: #000000;
JSON
{
  "hex": "#10304e",
  "rgb": {
    "r": 16,
    "g": 48,
    "b": 78
  },
  "hsl": {
    "h": 209.032,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.30226,
    "c": 0.06608,
    "h": 249.7
  },
  "luminance": 0.02774
}

Semantic roles & 50–950 ramp

primary
#10304E
secondary
#885C32
accent
#913FE9
background
#F5F6F7
surface
#E9EBEE
border
#C5C6C9
text
#04060A
muted
#797A7C

Preview Lab

Preview with #10304E

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

Preview Lab → · Contrast checker → · Palette generator →

#10304E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva