#15425F
Closest named color: Dark Grey Blue (#29465B). oklch(36.3% 0.07 241), rgb(21, 66, 95).
Aa
White text reads best on this color (10.62:1).
About this color
#15425F is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.070 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 10.62:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.97:1 |
| White text | 10.62:1 |
Values
| HEX | #15425F |
| RGB | rgb(21, 66, 95) |
| HSL | hsl(204, 64%, 23%) |
| OKLCH | oklch(36.3% 0.07 241) |
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 #15425F | 10.62:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #15425F | 1.97:1 | Fails | Lc 9.5 | Not readable |
| #15425F text on white | 10.62:1 | AAA | Lc 94.4 | Preferred for body text |
| #15425F text on black | 1.97:1 | Fails | Lc -8.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A3C6E0
oklch(81% 0.053 240.5)
-
Step 400
400
#70A8D0
oklch(70.8% 0.083 240.5)
-
Step 500
500
#4691C4
oklch(63.1% 0.107 241.1)
-
Step 600
600
#227AB0
oklch(55.5% 0.116 241.2)
-
Step 700
700
#116798
oklch(49.1% 0.108 241)
-
Step 800
800
#14547B
oklch(42.7% 0.089 241.1)
-
Step 900
900 (this color)
#15425F
oklch(36.3% 0.07 241)
-
Step 950
950
#10293A
oklch(27% 0.044 240.8)
#15425F 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) | #354260 | 0.036 |
| Deuteranopia (no green cones) | #2A3B5E | 0.028 |
| Tritanopia (no blue cones) | #00494C | 0.048 |
| Achromatopsia (no color) | #3E3E3E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15425F
#15425F
oklch(36.3% 0.07 241)
- #583412
#583412
oklch(36.2% 0.07 60.6)
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 #15425F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.034
- Midnight Green #073B4C ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.041
- Marine Blue #01386A ΔE 0.043
- Twilight Blue #0A437A ΔE 0.046
- Dark Teal #014D4E ΔE 0.054
Use #15425F 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.