#15435B#15435B
#15435B is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.4% C 0.064 H 235.4°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).
Color values
| HEX | #15435B |
|---|---|
| RGB | rgb(21, 67, 91) |
| HSL | hsl(201, 63%, 22%) |
| HSV | hsv(201, 77%, 36%) |
| CMYK | cmyk(76.9%, 26.4%, 0%, 64.3%) |
| CIE-LAB | lab(26.53, -6.50, -18.75) |
| CIE-LCH | lch(26.53, 19.84, 250.89°) |
| OKLab | oklab(36.37% -0.0364 -0.0528) |
| OKLCH | oklch(36.37% 0.064 235.4) |
| XYZ | xyz(4.2040, 4.9286, 10.6253) |
| Luminance | 0.0493 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 2.44
Dark Grey Blue
#29465B
ΔE00 2.99
Dark Blue Grey
#1F3B4D
ΔE00 3.69
Prussian Blue
#004577
ΔE00 6.88
Charcoal
#36454F
ΔE00 7.13
Twilight Blue
#0A437A
ΔE00 7.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#15435B #5B2D15
analogous
#155B50 #15435B #15205B
triadic
#15435B #5B1543 #435B15
tetradic
#15435B #50155B #5B2D15 #205B15
square
#15435B #50155B #5B2D15 #205B15
split-complementary
#15435B #5B1520 #5B5015
monochromatic
#061219 #0A1E29 #15435B #20688D #2C8CBE
Accessibility & contrast
On white
10.58
#15435B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#15435B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #15435B
10.58:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##15435B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##15435B | 1.00 | 10.58 | 1.99 | 10.58 |
| #FFFFFF | 10.58 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.58 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#37435C
Deuteranopia (green-blind)
#2E3C5B
Tritanopia (blue-blind)
#00494B
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #15435b; /* rgb */ color: rgb(21, 67, 91); /* oklch */ color: oklch(36.4% 0.064 235.4);
Tailwind
colors: {
custom: {
50: '#5d7789',
500: '#15435b',
950: '#000000',
},
}SCSS
$custom: #15435b; $custom-light: #5d7789; $custom-dark: #000000;
JSON
{
"hex": "#15435b",
"rgb": {
"r": 21,
"g": 67,
"b": 91
},
"hsl": {
"h": 200.571,
"s": 62.5,
"l": 21.961
},
"oklch": {
"l": 0.36371,
"c": 0.06411,
"h": 235.4
},
"luminance": 0.04929
}Semantic roles & 50–950 ramp
primary
#15435B
secondary
#925839
accent
#7A42E6
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#05080B
muted
#797B7C