#15364B
Closest named color: Midnight Green (#073B4C). oklch(31.9% 0.054 239.5), rgb(21, 54, 75).
Aa
White text reads best on this color (12.64:1).
About this color
#15364B is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.054 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.018 away. White text reads best on it, at 12.64:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.66:1 |
| White text | 12.64:1 |
Values
| HEX | #15364B |
| RGB | rgb(21, 54, 75) |
| HSL | hsl(203, 56%, 19%) |
| OKLCH | oklch(31.9% 0.054 239.5) |
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 #15364B | 12.64:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #15364B | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #15364B text on white | 12.64:1 | AAA | Lc 98.5 | Preferred for body text |
| #15364B text on black | 1.66:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDEE
oklch(88.5% 0.035 238.7)
-
Step 300
300
#9BC7E6
oklch(80.9% 0.064 239.3)
-
Step 400
400
#60A9D9
oklch(70.6% 0.102 239.2)
-
Step 500
500
#2792CF
oklch(63% 0.13 239.7)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006899
oklch(49.2% 0.111 239.3)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#014669
oklch(37.5% 0.085 239.5)
-
Step 950
950 (this color)
#15364B
oklch(31.9% 0.054 239.5)
#15364B 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) | #2C364C | 0.029 |
| Deuteranopia (no green cones) | #25314B | 0.023 |
| Tritanopia (no blue cones) | #003B3D | 0.038 |
| Achromatopsia (no color) | #333333 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15364B
#15364B
oklch(31.9% 0.054 239.5)
- #472B14
#472B14
oklch(31.9% 0.055 58.4)
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 #15364B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.025
- Gunmetal #293241 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.038
- Onyx #343A40 ΔE 0.048
- Marine #042E60 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.055
Use #15364B 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.