#10203B#10203B
#10203B is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.5% C 0.056 H 260.3°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).
Color values
| HEX | #10203B |
|---|---|
| RGB | rgb(16, 32, 59) |
| HSL | hsl(218, 57%, 15%) |
| HSV | hsv(218, 73%, 23%) |
| CMYK | cmyk(72.9%, 45.8%, 0%, 76.9%) |
| CIE-LAB | lab(12.34, 3.78, -19.44) |
| CIE-LCH | lch(12.34, 19.81, 281.01°) |
| OKLab | oklab(24.55% -0.0095 -0.0553) |
| OKLCH | oklch(24.55% 0.056 260.3) |
| XYZ | xyz(1.5193, 1.4588, 4.3383) |
| Luminance | 0.0146 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue
#1B2A4A
ΔE00 3.57
Navy (survey)
#01153E
ΔE00 5.49
Dark
#1B2431
ΔE00 6.61
Marine
#042E60
ΔE00 7.55
Navy Blue (survey)
#001146
ΔE00 7.83
Dark Navy Blue
#00022E
ΔE00 8.14
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#10203B #3B2B10
analogous
#10363B #10203B #15103B
triadic
#10203B #3B1020 #203B10
tetradic
#10203B #3B1036 #3B2B10 #103B15
square
#10203B #3B1036 #3B2B10 #103B15
split-complementary
#10203B #3B1510 #363B10
monochromatic
#070D18 #070D18 #10203B #1D3A6B #2A549B
Accessibility & contrast
On white
16.26
#10203B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.29
#10203B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #10203B
16.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##10203B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##10203B | 1.00 | 16.26 | 1.29 | 16.26 |
| #FFFFFF | 16.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.29 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#14223C
Deuteranopia (green-blind)
#0E1E3A
Tritanopia (blue-blind)
#00262A
Achromatopsia (no color)
#202020
Design tokens & code
CSS
--color: #10203b; /* rgb */ color: rgb(16, 32, 59); /* oklch */ color: oklch(24.5% 0.056 260.3);
Tailwind
colors: {
custom: {
50: '#535b71',
500: '#10203b',
950: '#000000',
},
}SCSS
$custom: #10203b; $custom-light: #535b71; $custom-dark: #000000;
JSON
{
"hex": "#10203b",
"rgb": {
"r": 16,
"g": 32,
"b": 59
},
"hsl": {
"h": 217.674,
"s": 57.333,
"l": 14.706
},
"oklch": {
"l": 0.24548,
"c": 0.05611,
"h": 260.3
},
"luminance": 0.01459
}Semantic roles & 50–950 ramp
primary
#10203B
secondary
#755C32
accent
#A847E1
background
#F4F5F6
surface
#E8E9EC
border
#C4C5C7
text
#030407
muted
#78797A