#15475D
Closest named color: Dark Grey Blue (#29465B). oklch(37.6% 0.064 231.2), rgb(21, 71, 93).
Aa
White text reads best on this color (10.04:1).
About this color
#15475D is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.064 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.018 away. White text reads best on it, at 10.04:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.09:1 |
| White text | 10.04:1 |
Values
| HEX | #15475D |
| RGB | rgb(21, 71, 93) |
| HSL | hsl(198, 63%, 22%) |
| OKLCH | oklch(37.6% 0.064 231.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #15475D | 10.04:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #15475D | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #15475D text on white | 10.04:1 | AAA | Lc 93.1 | Preferred for body text |
| #15475D text on black | 2.09:1 | Fails | Lc -9.4 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A2C7DA
oklch(80.9% 0.048 230.4)
-
Step 400
400
#6DAAC8
oklch(70.8% 0.077 230.6)
-
Step 500
500
#4194BA
oklch(63.1% 0.098 231)
-
Step 600
600
#157EA6
oklch(55.7% 0.106 230.6)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#0B5674
oklch(42.6% 0.083 231.9)
-
Step 900
900 (this color)
#15475D
oklch(37.6% 0.064 231.2)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#15475D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #3C465E | 0.043 |
| Deuteranopia (no green cones) | #323F5D | 0.037 |
| Tritanopia (no blue cones) | #004D4E | 0.039 |
| Achromatopsia (no color) | #424242 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15475D
#15475D
oklch(37.6% 0.064 231.2)
- #5C3720
#5C3720
oklch(37.6% 0.064 51.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #15475D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.018
- Charcoal #264653 ΔE 0.021
- Dark Teal #014D4E ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.041
- Midnight Green #073B4C ΔE 0.047
- Deep Teal #00555A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.048
- Twilight Blue #0A437A ΔE 0.055
Use #15475D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.