#15415B
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.8% 0.065 238.6), rgb(21, 65, 91).
Aa
White text reads best on this color (10.82:1).
About this color
#15415B is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.065 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.027 away. White text reads best on it, at 10.82:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.93:1 |
| White text | 10.82:1 |
Values
| HEX | #15415B |
| RGB | rgb(21, 65, 91) |
| HSL | hsl(202, 63%, 22%) |
| OKLCH | oklch(35.8% 0.065 238.6) |
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 #15415B | 10.82:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #15415B | 1.93:1 | Fails | Lc 9.1 | Not readable |
| #15415B text on white | 10.82:1 | AAA | Lc 94.8 | Preferred for body text |
| #15415B text on black | 1.93:1 | Fails | Lc -7.8 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A4C6DD
oklch(80.9% 0.049 237.8)
-
Step 400
400
#71A8CC
oklch(70.7% 0.078 238.1)
-
Step 500
500
#4892BF
oklch(63.2% 0.1 237.9)
-
Step 600
600
#257BAC
oklch(55.6% 0.11 238.9)
-
Step 700
700
#166893
oklch(49.2% 0.101 238)
-
Step 800
800
#165578
oklch(42.8% 0.084 238.3)
-
Step 900
900 (this color)
#15415B
oklch(35.8% 0.065 238.6)
-
Step 950
950
#112938
oklch(26.9% 0.041 238.3)
#15415B 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) | #35415C | 0.036 |
| Deuteranopia (no green cones) | #2B3A5B | 0.030 |
| Tritanopia (no blue cones) | #00484A | 0.045 |
| Achromatopsia (no color) | #3D3D3D | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15415B
#15415B
oklch(35.8% 0.065 238.6)
- #563316
#563316
oklch(35.8% 0.066 58)
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 #15415B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.030
- Midnight Green #073B4C ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.038
- Marine Blue #01386A ΔE 0.045
- Dark Teal #014D4E ΔE 0.052
- Twilight Blue #0A437A ΔE 0.053
Use #15415B 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.