#15344B
Closest named color: Midnight Green (#073B4C). oklch(31.3% 0.055 243.4), rgb(21, 52, 75).
Aa
White text reads best on this color (12.92:1).
About this color
#15344B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.055 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.024 away. White text reads best on it, at 12.92:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.62:1 |
| White text | 12.92:1 |
Values
| HEX | #15344B |
| RGB | rgb(21, 52, 75) |
| HSL | hsl(206, 56%, 19%) |
| OKLCH | oklch(31.3% 0.055 243.4) |
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 #15344B | 12.92:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #15344B | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #15344B text on white | 12.92:1 | AAA | Lc 99.0 | Preferred for body text |
| #15344B text on black | 1.62:1 | 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
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C5DDF0
oklch(88.6% 0.037 241.8)
-
Step 300
300
#9DC6E8
oklch(80.9% 0.065 243.7)
-
Step 400
400
#63A8DD
oklch(70.7% 0.105 243.2)
-
Step 500
500
#2E91D4
oklch(63.2% 0.134 243.3)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#07456C
oklch(37.6% 0.088 243.8)
-
Step 950
950 (this color)
#15344B
oklch(31.3% 0.055 243.4)
#15344B 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) | #2A344C | 0.026 |
| Deuteranopia (no green cones) | #222F4B | 0.021 |
| Tritanopia (no blue cones) | #003A3C | 0.042 |
| Achromatopsia (no color) | #313131 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15344B
#15344B
oklch(31.3% 0.055 243.4)
- #452A10
#452A10
oklch(31.3% 0.056 62.1)
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 #15344B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.027
- Gunmetal #293241 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.035
- Marine #042E60 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.049
- Onyx #343A40 ΔE 0.053
Use #15344B 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.